diff --git a/2015/day15.py b/2015/day15.py
new file mode 100644
index 0000000..9436e78
--- /dev/null
+++ b/2015/day15.py
@@ -0,0 +1,28 @@
+with open('day15-input', 'r') as file:
+  data = [l.strip('\n') for l in file]
+import numpy as np
+from itertools import combinations_with_replacement as combi
+
+ingredients = {}
+for line in data:
+  tokens = line.split()
+  name = tokens[0].rstrip(':')
+  values = [int(i.rstrip(',')) for i in tokens[2::2]]
+  ingredients[name] = values
+
+ingredients_matrix = np.asmatrix(np.vstack(ingredients.values()))
+
+max_value = 0
+max_value_500 = 0
+for teaspoons in combi(range(len(ingredients)), 100):
+  ingredient_amounts = [teaspoons.count(i) for i in range(len(ingredients))]
+  property_amounts = (ingredients_matrix.T * np.mat(ingredient_amounts).T)
+  if (property_amounts[:-1] < 1).sum():  # non-positive values for anything other than calories detected, abort
+    continue
+  value = np.prod(property_amounts[:-1])
+  max_value = max(value, max_value)
+  if property_amounts[-1] == 500:
+    max_value_500 = max(value, max_value_500)
+
+print(max_value)  # Part 1
+print(max_value_500)  # Part 2
diff --git a/2015/day16-input b/2015/day16-input
new file mode 100644
index 0000000..ddaeefc
--- /dev/null
+++ b/2015/day16-input
@@ -0,0 +1,500 @@
+Sue 1: cars: 9, akitas: 3, goldfish: 0
+Sue 2: akitas: 9, children: 3, samoyeds: 9
+Sue 3: trees: 6, cars: 6, children: 4
+Sue 4: trees: 4, vizslas: 4, goldfish: 9
+Sue 5: akitas: 9, vizslas: 7, cars: 5
+Sue 6: vizslas: 6, goldfish: 6, akitas: 3
+Sue 7: pomeranians: 5, samoyeds: 0, perfumes: 10
+Sue 8: cars: 10, pomeranians: 7, goldfish: 8
+Sue 9: trees: 2, vizslas: 7, samoyeds: 6
+Sue 10: perfumes: 5, pomeranians: 4, children: 9
+Sue 11: vizslas: 5, perfumes: 8, cars: 10
+Sue 12: children: 10, cars: 6, perfumes: 5
+Sue 13: cats: 4, samoyeds: 7, pomeranians: 8
+Sue 14: perfumes: 6, goldfish: 10, children: 7
+Sue 15: perfumes: 4, pomeranians: 3, cars: 6
+Sue 16: perfumes: 7, cars: 9, pomeranians: 6
+Sue 17: goldfish: 3, cars: 6, vizslas: 7
+Sue 18: perfumes: 6, cars: 7, goldfish: 3
+Sue 19: trees: 0, akitas: 3, pomeranians: 8
+Sue 20: goldfish: 6, trees: 2, akitas: 6
+Sue 21: pomeranians: 9, akitas: 9, samoyeds: 9
+Sue 22: vizslas: 2, cars: 9, perfumes: 5
+Sue 23: goldfish: 10, samoyeds: 8, children: 9
+Sue 24: akitas: 4, goldfish: 1, vizslas: 5
+Sue 25: goldfish: 10, trees: 8, perfumes: 6
+Sue 26: vizslas: 5, akitas: 8, trees: 1
+Sue 27: trees: 3, cars: 6, perfumes: 2
+Sue 28: goldfish: 8, trees: 7, akitas: 10
+Sue 29: children: 5, trees: 1, goldfish: 10
+Sue 30: vizslas: 3, perfumes: 8, akitas: 3
+Sue 31: cars: 6, children: 10, perfumes: 7
+Sue 32: cars: 10, perfumes: 3, goldfish: 10
+Sue 33: perfumes: 9, vizslas: 3, akitas: 4
+Sue 34: perfumes: 10, vizslas: 7, children: 8
+Sue 35: cars: 5, perfumes: 5, vizslas: 9
+Sue 36: trees: 9, cars: 9, akitas: 7
+Sue 37: samoyeds: 9, perfumes: 2, cars: 10
+Sue 38: akitas: 7, cars: 5, trees: 5
+Sue 39: goldfish: 8, trees: 9, cars: 10
+Sue 40: trees: 0, cats: 1, pomeranians: 1
+Sue 41: pomeranians: 6, perfumes: 9, samoyeds: 1
+Sue 42: vizslas: 6, akitas: 3, pomeranians: 1
+Sue 43: vizslas: 2, perfumes: 3, pomeranians: 6
+Sue 44: akitas: 5, pomeranians: 0, vizslas: 10
+Sue 45: vizslas: 4, goldfish: 1, cars: 5
+Sue 46: cars: 4, vizslas: 8, cats: 0
+Sue 47: cats: 5, children: 8, pomeranians: 2
+Sue 48: vizslas: 3, perfumes: 6, cats: 0
+Sue 49: akitas: 7, perfumes: 0, trees: 7
+Sue 50: trees: 4, akitas: 10, vizslas: 2
+Sue 51: goldfish: 10, cars: 9, trees: 4
+Sue 52: cars: 5, children: 9, perfumes: 0
+Sue 53: vizslas: 5, cars: 3, cats: 8
+Sue 54: cars: 5, akitas: 1, goldfish: 10
+Sue 55: akitas: 10, vizslas: 2, cars: 6
+Sue 56: cats: 6, trees: 0, cars: 4
+Sue 57: vizslas: 1, akitas: 1, samoyeds: 7
+Sue 58: samoyeds: 6, vizslas: 1, akitas: 7
+Sue 59: akitas: 9, cars: 8, vizslas: 1
+Sue 60: cars: 6, vizslas: 7, goldfish: 0
+Sue 61: pomeranians: 5, akitas: 6, vizslas: 2
+Sue 62: samoyeds: 2, cats: 8, goldfish: 7
+Sue 63: vizslas: 10, goldfish: 7, samoyeds: 9
+Sue 64: perfumes: 2, trees: 1, akitas: 6
+Sue 65: cars: 8, perfumes: 10, vizslas: 9
+Sue 66: akitas: 8, vizslas: 8, perfumes: 8
+Sue 67: goldfish: 7, cars: 9, samoyeds: 9
+Sue 68: perfumes: 2, children: 7, akitas: 1
+Sue 69: perfumes: 7, vizslas: 9, akitas: 1
+Sue 70: samoyeds: 3, vizslas: 1, trees: 1
+Sue 71: vizslas: 8, goldfish: 7, trees: 9
+Sue 72: goldfish: 8, cars: 6, trees: 9
+Sue 73: perfumes: 5, cars: 10, samoyeds: 7
+Sue 74: pomeranians: 4, perfumes: 3, cars: 5
+Sue 75: samoyeds: 1, perfumes: 1, pomeranians: 1
+Sue 76: goldfish: 4, cats: 6, akitas: 7
+Sue 77: perfumes: 5, akitas: 4, vizslas: 8
+Sue 78: perfumes: 4, cats: 3, children: 4
+Sue 79: vizslas: 5, pomeranians: 9, samoyeds: 7
+Sue 80: cars: 3, samoyeds: 5, pomeranians: 7
+Sue 81: vizslas: 2, samoyeds: 4, perfumes: 2
+Sue 82: trees: 1, akitas: 10, vizslas: 9
+Sue 83: vizslas: 0, akitas: 2, samoyeds: 5
+Sue 84: perfumes: 5, vizslas: 7, children: 8
+Sue 85: cats: 3, children: 2, trees: 0
+Sue 86: cars: 3, perfumes: 2, goldfish: 2
+Sue 87: trees: 1, akitas: 7, vizslas: 0
+Sue 88: trees: 1, akitas: 2, samoyeds: 1
+Sue 89: cars: 4, vizslas: 8, akitas: 1
+Sue 90: perfumes: 5, cats: 3, vizslas: 0
+Sue 91: samoyeds: 7, cats: 6, goldfish: 8
+Sue 92: samoyeds: 10, cats: 0, cars: 7
+Sue 93: cars: 6, akitas: 7, samoyeds: 2
+Sue 94: perfumes: 0, goldfish: 6, trees: 9
+Sue 95: cars: 6, pomeranians: 2, samoyeds: 8
+Sue 96: cars: 2, trees: 9, samoyeds: 4
+Sue 97: goldfish: 5, trees: 1, children: 0
+Sue 98: akitas: 9, goldfish: 7, children: 6
+Sue 99: goldfish: 9, akitas: 0, pomeranians: 0
+Sue 100: samoyeds: 6, children: 8, vizslas: 5
+Sue 101: vizslas: 6, cars: 5, goldfish: 4
+Sue 102: vizslas: 6, akitas: 2, perfumes: 6
+Sue 103: samoyeds: 3, akitas: 7, children: 4
+Sue 104: cars: 3, perfumes: 10, cats: 6
+Sue 105: vizslas: 9, pomeranians: 0, cars: 1
+Sue 106: cats: 6, samoyeds: 8, pomeranians: 5
+Sue 107: cars: 7, trees: 4, akitas: 10
+Sue 108: perfumes: 3, vizslas: 1, goldfish: 9
+Sue 109: trees: 6, cars: 8, goldfish: 5
+Sue 110: pomeranians: 2, children: 1, vizslas: 7
+Sue 111: akitas: 0, vizslas: 8, cars: 0
+Sue 112: goldfish: 3, vizslas: 6, akitas: 2
+Sue 113: akitas: 10, pomeranians: 7, perfumes: 7
+Sue 114: cars: 10, cats: 2, vizslas: 8
+Sue 115: akitas: 8, trees: 1, vizslas: 2
+Sue 116: vizslas: 2, akitas: 7, perfumes: 1
+Sue 117: goldfish: 0, vizslas: 10, trees: 9
+Sue 118: trees: 3, cars: 0, goldfish: 0
+Sue 119: perfumes: 7, goldfish: 5, trees: 9
+Sue 120: children: 9, vizslas: 3, trees: 5
+Sue 121: vizslas: 1, goldfish: 7, akitas: 10
+Sue 122: perfumes: 1, cars: 6, trees: 1
+Sue 123: akitas: 2, vizslas: 0, goldfish: 7
+Sue 124: vizslas: 10, pomeranians: 7, akitas: 0
+Sue 125: perfumes: 4, cats: 5, vizslas: 2
+Sue 126: cars: 6, samoyeds: 8, akitas: 3
+Sue 127: trees: 9, goldfish: 7, akitas: 9
+Sue 128: cars: 8, trees: 0, perfumes: 2
+Sue 129: pomeranians: 7, vizslas: 2, perfumes: 6
+Sue 130: vizslas: 9, pomeranians: 3, trees: 6
+Sue 131: vizslas: 7, cars: 9, perfumes: 1
+Sue 132: akitas: 2, pomeranians: 9, vizslas: 7
+Sue 133: trees: 9, pomeranians: 10, samoyeds: 0
+Sue 134: children: 4, akitas: 10, perfumes: 4
+Sue 135: vizslas: 1, cats: 1, trees: 8
+Sue 136: samoyeds: 7, cars: 8, goldfish: 5
+Sue 137: perfumes: 0, children: 1, pomeranians: 10
+Sue 138: vizslas: 4, perfumes: 5, cars: 5
+Sue 139: trees: 2, perfumes: 8, goldfish: 0
+Sue 140: cars: 10, akitas: 5, goldfish: 7
+Sue 141: children: 4, trees: 3, goldfish: 8
+Sue 142: cars: 8, perfumes: 6, trees: 7
+Sue 143: akitas: 6, goldfish: 0, trees: 10
+Sue 144: akitas: 7, pomeranians: 10, perfumes: 10
+Sue 145: trees: 10, vizslas: 3, goldfish: 4
+Sue 146: samoyeds: 4, akitas: 3, perfumes: 6
+Sue 147: akitas: 8, perfumes: 2, pomeranians: 10
+Sue 148: cars: 2, perfumes: 0, goldfish: 8
+Sue 149: goldfish: 6, akitas: 7, perfumes: 6
+Sue 150: cars: 2, pomeranians: 5, perfumes: 4
+Sue 151: goldfish: 1, cars: 5, trees: 0
+Sue 152: pomeranians: 4, cars: 7, children: 1
+Sue 153: goldfish: 8, cars: 1, children: 10
+Sue 154: cars: 6, perfumes: 8, trees: 1
+Sue 155: akitas: 4, perfumes: 6, pomeranians: 2
+Sue 156: pomeranians: 5, cars: 4, akitas: 1
+Sue 157: cats: 5, cars: 9, goldfish: 8
+Sue 158: vizslas: 5, samoyeds: 1, children: 7
+Sue 159: vizslas: 1, perfumes: 3, akitas: 1
+Sue 160: goldfish: 10, pomeranians: 9, perfumes: 5
+Sue 161: samoyeds: 3, trees: 7, cars: 2
+Sue 162: cars: 2, pomeranians: 1, vizslas: 6
+Sue 163: vizslas: 3, perfumes: 5, akitas: 6
+Sue 164: vizslas: 1, trees: 0, akitas: 5
+Sue 165: vizslas: 5, cars: 6, pomeranians: 8
+Sue 166: cars: 10, perfumes: 2, trees: 9
+Sue 167: cars: 10, pomeranians: 6, perfumes: 4
+Sue 168: akitas: 7, trees: 10, goldfish: 7
+Sue 169: akitas: 1, perfumes: 10, cars: 10
+Sue 170: akitas: 5, samoyeds: 8, vizslas: 6
+Sue 171: children: 3, akitas: 2, vizslas: 3
+Sue 172: goldfish: 5, vizslas: 5, perfumes: 9
+Sue 173: perfumes: 5, goldfish: 10, trees: 5
+Sue 174: akitas: 5, vizslas: 2, children: 7
+Sue 175: perfumes: 5, cars: 7, samoyeds: 2
+Sue 176: cars: 8, vizslas: 10, akitas: 7
+Sue 177: perfumes: 7, children: 8, goldfish: 7
+Sue 178: cars: 1, pomeranians: 9, samoyeds: 0
+Sue 179: perfumes: 6, cars: 2, trees: 6
+Sue 180: trees: 3, vizslas: 7, children: 3
+Sue 181: vizslas: 8, samoyeds: 2, trees: 9
+Sue 182: perfumes: 3, cats: 1, children: 5
+Sue 183: akitas: 9, cats: 6, children: 3
+Sue 184: pomeranians: 9, cars: 6, perfumes: 8
+Sue 185: vizslas: 9, trees: 0, akitas: 9
+Sue 186: perfumes: 6, cars: 5, goldfish: 5
+Sue 187: perfumes: 4, cats: 7, vizslas: 2
+Sue 188: akitas: 7, cars: 4, children: 10
+Sue 189: akitas: 0, goldfish: 7, vizslas: 5
+Sue 190: akitas: 5, cars: 5, cats: 6
+Sue 191: cars: 6, children: 0, perfumes: 3
+Sue 192: cats: 2, perfumes: 10, goldfish: 7
+Sue 193: trees: 1, perfumes: 0, cars: 8
+Sue 194: perfumes: 9, children: 4, cats: 6
+Sue 195: akitas: 7, trees: 3, goldfish: 6
+Sue 196: goldfish: 8, cars: 8, samoyeds: 0
+Sue 197: cats: 0, akitas: 10, vizslas: 0
+Sue 198: goldfish: 1, perfumes: 3, cars: 8
+Sue 199: akitas: 10, vizslas: 5, samoyeds: 6
+Sue 200: pomeranians: 9, goldfish: 9, samoyeds: 7
+Sue 201: samoyeds: 0, goldfish: 7, akitas: 6
+Sue 202: vizslas: 0, goldfish: 2, akitas: 1
+Sue 203: goldfish: 3, children: 0, vizslas: 8
+Sue 204: cars: 8, trees: 2, perfumes: 2
+Sue 205: cars: 4, perfumes: 5, goldfish: 8
+Sue 206: vizslas: 3, trees: 2, akitas: 1
+Sue 207: cars: 7, goldfish: 5, trees: 1
+Sue 208: goldfish: 1, cars: 6, vizslas: 8
+Sue 209: cats: 4, trees: 1, children: 0
+Sue 210: cats: 10, children: 0, perfumes: 0
+Sue 211: cars: 4, pomeranians: 7, samoyeds: 5
+Sue 212: cars: 2, pomeranians: 10, trees: 1
+Sue 213: trees: 10, cats: 5, cars: 10
+Sue 214: perfumes: 5, trees: 1, vizslas: 1
+Sue 215: akitas: 10, vizslas: 8, samoyeds: 8
+Sue 216: vizslas: 2, cats: 5, pomeranians: 3
+Sue 217: akitas: 10, perfumes: 0, cats: 10
+Sue 218: trees: 8, cats: 5, vizslas: 2
+Sue 219: goldfish: 10, perfumes: 8, children: 2
+Sue 220: samoyeds: 9, trees: 8, vizslas: 7
+Sue 221: children: 7, trees: 6, cars: 6
+Sue 222: cats: 4, akitas: 5, pomeranians: 0
+Sue 223: trees: 8, goldfish: 2, perfumes: 8
+Sue 224: pomeranians: 9, cars: 8, akitas: 5
+Sue 225: akitas: 10, vizslas: 0, trees: 2
+Sue 226: akitas: 8, cats: 6, cars: 7
+Sue 227: trees: 1, akitas: 3, goldfish: 4
+Sue 228: pomeranians: 6, cats: 3, goldfish: 3
+Sue 229: trees: 10, perfumes: 3, vizslas: 7
+Sue 230: perfumes: 8, cars: 7, akitas: 0
+Sue 231: perfumes: 10, goldfish: 4, cars: 6
+Sue 232: goldfish: 7, trees: 3, cats: 2
+Sue 233: perfumes: 6, trees: 4, akitas: 4
+Sue 234: goldfish: 9, cats: 4, cars: 7
+Sue 235: pomeranians: 6, vizslas: 0, akitas: 6
+Sue 236: samoyeds: 5, cars: 5, children: 4
+Sue 237: vizslas: 10, cars: 4, goldfish: 4
+Sue 238: goldfish: 3, samoyeds: 7, akitas: 2
+Sue 239: cats: 8, children: 2, vizslas: 7
+Sue 240: cars: 9, perfumes: 4, trees: 9
+Sue 241: trees: 8, vizslas: 2, goldfish: 5
+Sue 242: cars: 6, trees: 3, vizslas: 3
+Sue 243: cats: 6, children: 7, cars: 4
+Sue 244: cats: 10, perfumes: 2, goldfish: 7
+Sue 245: akitas: 8, cats: 10, perfumes: 8
+Sue 246: vizslas: 8, akitas: 5, perfumes: 10
+Sue 247: goldfish: 2, vizslas: 5, akitas: 7
+Sue 248: akitas: 3, perfumes: 0, trees: 10
+Sue 249: cats: 4, vizslas: 5, pomeranians: 6
+Sue 250: children: 3, vizslas: 7, perfumes: 2
+Sue 251: cars: 0, pomeranians: 10, perfumes: 0
+Sue 252: akitas: 0, goldfish: 9, cars: 6
+Sue 253: perfumes: 7, cars: 4, samoyeds: 5
+Sue 254: akitas: 9, trees: 10, cars: 4
+Sue 255: samoyeds: 10, children: 6, akitas: 7
+Sue 256: trees: 8, goldfish: 8, perfumes: 8
+Sue 257: goldfish: 3, akitas: 2, perfumes: 6
+Sue 258: cats: 7, trees: 0, vizslas: 1
+Sue 259: perfumes: 7, cars: 7, akitas: 7
+Sue 260: goldfish: 0, vizslas: 0, samoyeds: 2
+Sue 261: vizslas: 2, children: 2, cats: 3
+Sue 262: vizslas: 2, pomeranians: 9, samoyeds: 3
+Sue 263: cats: 1, akitas: 3, vizslas: 1
+Sue 264: pomeranians: 10, trees: 2, goldfish: 7
+Sue 265: samoyeds: 5, trees: 7, perfumes: 4
+Sue 266: perfumes: 10, cars: 1, pomeranians: 3
+Sue 267: trees: 6, goldfish: 1, cars: 0
+Sue 268: cars: 6, samoyeds: 4, pomeranians: 5
+Sue 269: goldfish: 3, vizslas: 3, akitas: 3
+Sue 270: children: 5, cats: 0, cars: 4
+Sue 271: goldfish: 3, perfumes: 8, pomeranians: 7
+Sue 272: samoyeds: 6, cars: 7, perfumes: 10
+Sue 273: trees: 4, cars: 2, vizslas: 7
+Sue 274: samoyeds: 10, perfumes: 9, goldfish: 6
+Sue 275: cars: 4, trees: 2, perfumes: 7
+Sue 276: akitas: 3, perfumes: 9, cars: 9
+Sue 277: akitas: 8, vizslas: 2, cats: 6
+Sue 278: trees: 5, goldfish: 7, akitas: 3
+Sue 279: perfumes: 9, cars: 8, vizslas: 2
+Sue 280: trees: 3, vizslas: 0, children: 0
+Sue 281: cars: 7, trees: 2, cats: 5
+Sue 282: vizslas: 4, cars: 10, cats: 3
+Sue 283: akitas: 10, cats: 3, samoyeds: 9
+Sue 284: trees: 7, children: 5, goldfish: 6
+Sue 285: cars: 2, perfumes: 5, cats: 7
+Sue 286: samoyeds: 5, trees: 10, goldfish: 6
+Sue 287: goldfish: 10, perfumes: 4, trees: 7
+Sue 288: vizslas: 9, trees: 9, perfumes: 0
+Sue 289: trees: 4, goldfish: 9, vizslas: 8
+Sue 290: vizslas: 3, cars: 3, trees: 2
+Sue 291: goldfish: 2, akitas: 2, trees: 2
+Sue 292: children: 1, cars: 0, vizslas: 5
+Sue 293: trees: 5, akitas: 4, goldfish: 6
+Sue 294: akitas: 3, vizslas: 7, pomeranians: 5
+Sue 295: goldfish: 10, vizslas: 3, trees: 1
+Sue 296: cars: 2, trees: 1, akitas: 0
+Sue 297: akitas: 10, vizslas: 6, samoyeds: 2
+Sue 298: children: 5, trees: 1, samoyeds: 9
+Sue 299: perfumes: 9, trees: 6, vizslas: 1
+Sue 300: akitas: 7, pomeranians: 6, vizslas: 6
+Sue 301: cats: 7, children: 6, vizslas: 7
+Sue 302: trees: 2, vizslas: 7, samoyeds: 4
+Sue 303: goldfish: 0, samoyeds: 10, cars: 4
+Sue 304: pomeranians: 9, children: 3, vizslas: 5
+Sue 305: akitas: 8, vizslas: 4, cars: 5
+Sue 306: akitas: 0, perfumes: 2, pomeranians: 10
+Sue 307: akitas: 9, cars: 0, trees: 2
+Sue 308: vizslas: 10, goldfish: 8, akitas: 6
+Sue 309: trees: 0, cats: 6, perfumes: 2
+Sue 310: vizslas: 10, cars: 1, trees: 4
+Sue 311: goldfish: 8, perfumes: 6, cats: 3
+Sue 312: goldfish: 0, children: 1, akitas: 2
+Sue 313: pomeranians: 10, trees: 6, samoyeds: 6
+Sue 314: vizslas: 5, akitas: 4, pomeranians: 2
+Sue 315: goldfish: 7, trees: 0, akitas: 5
+Sue 316: goldfish: 4, vizslas: 5, cars: 7
+Sue 317: perfumes: 7, cats: 10, cars: 4
+Sue 318: samoyeds: 10, cars: 9, trees: 7
+Sue 319: pomeranians: 8, vizslas: 6, cars: 3
+Sue 320: cars: 4, cats: 9, akitas: 4
+Sue 321: cars: 6, trees: 2, perfumes: 6
+Sue 322: goldfish: 1, cats: 2, perfumes: 4
+Sue 323: akitas: 6, cats: 5, cars: 8
+Sue 324: cats: 4, vizslas: 9, akitas: 0
+Sue 325: children: 8, samoyeds: 9, trees: 4
+Sue 326: vizslas: 2, samoyeds: 10, perfumes: 7
+Sue 327: goldfish: 7, pomeranians: 4, akitas: 10
+Sue 328: perfumes: 8, cats: 4, akitas: 10
+Sue 329: trees: 0, cars: 9, goldfish: 3
+Sue 330: trees: 5, samoyeds: 7, perfumes: 8
+Sue 331: cars: 4, perfumes: 2, goldfish: 0
+Sue 332: vizslas: 4, pomeranians: 7, akitas: 1
+Sue 333: akitas: 4, goldfish: 3, perfumes: 0
+Sue 334: samoyeds: 3, akitas: 10, vizslas: 0
+Sue 335: goldfish: 1, akitas: 7, vizslas: 6
+Sue 336: perfumes: 1, goldfish: 1, pomeranians: 8
+Sue 337: children: 5, cars: 4, cats: 4
+Sue 338: vizslas: 5, cars: 10, cats: 3
+Sue 339: trees: 2, goldfish: 3, cars: 1
+Sue 340: trees: 10, goldfish: 6, perfumes: 2
+Sue 341: akitas: 5, trees: 6, cats: 3
+Sue 342: cars: 10, children: 8, goldfish: 0
+Sue 343: cats: 2, akitas: 0, pomeranians: 4
+Sue 344: perfumes: 1, vizslas: 3, cars: 3
+Sue 345: samoyeds: 8, cats: 5, perfumes: 8
+Sue 346: cars: 5, akitas: 10, trees: 2
+Sue 347: vizslas: 9, akitas: 9, cars: 3
+Sue 348: cars: 3, perfumes: 1, pomeranians: 9
+Sue 349: akitas: 1, cars: 4, perfumes: 0
+Sue 350: perfumes: 8, vizslas: 2, trees: 6
+Sue 351: pomeranians: 5, akitas: 9, cats: 8
+Sue 352: pomeranians: 8, vizslas: 3, goldfish: 10
+Sue 353: trees: 2, pomeranians: 0, goldfish: 6
+Sue 354: cats: 5, akitas: 7, goldfish: 6
+Sue 355: goldfish: 6, children: 4, trees: 10
+Sue 356: children: 1, trees: 3, akitas: 7
+Sue 357: trees: 2, samoyeds: 10, goldfish: 3
+Sue 358: samoyeds: 10, cats: 0, goldfish: 0
+Sue 359: perfumes: 3, children: 6, pomeranians: 1
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diff --git a/2015/day18-input b/2015/day18-input
new file mode 100644
index 0000000..e91a2a7
--- /dev/null
+++ b/2015/day18-input
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diff --git a/2015/day19-input b/2015/day19-input
new file mode 100644
index 0000000..b0515c0
--- /dev/null
+++ b/2015/day19-input
@@ -0,0 +1,45 @@
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+Al => ThRnFAr
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+B => TiRnFAr
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+Ca => PRnFAr
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+Ca => SiRnMgAr
+Ca => SiTh
+F => CaF
+F => PMg
+F => SiAl
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+H => CRnMgYFAr
+H => HCa
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+Mg => BF
+Mg => TiMg
+N => CRnFAr
+N => HSi
+O => CRnFYFAr
+O => CRnMgAr
+O => HP
+O => NRnFAr
+O => OTi
+P => CaP
+P => PTi
+P => SiRnFAr
+Si => CaSi
+Th => ThCa
+Ti => BP
+Ti => TiTi
+e => HF
+e => NAl
+e => OMg
+
+CRnSiRnCaPTiMgYCaPTiRnFArSiThFArCaSiThSiThPBCaCaSiRnSiRnTiTiMgArPBCaPMgYPTiRnFArFArCaSiRnBPMgArPRnCaPTiRnFArCaSiThCaCaFArPBCaCaPTiTiRnFArCaSiRnSiAlYSiThRnFArArCaSiRnBFArCaCaSiRnSiThCaCaCaFYCaPTiBCaSiThCaSiThPMgArSiRnCaPBFYCaCaFArCaCaCaCaSiThCaSiRnPRnFArPBSiThPRnFArSiRnMgArCaFYFArCaSiRnSiAlArTiTiTiTiTiTiTiRnPMgArPTiTiTiBSiRnSiAlArTiTiRnPMgArCaFYBPBPTiRnSiRnMgArSiThCaFArCaSiThFArPRnFArCaSiRnTiBSiThSiRnSiAlYCaFArPRnFArSiThCaFArCaCaSiThCaCaCaSiRnPRnCaFArFYPMgArCaPBCaPBSiRnFYPBCaFArCaSiAl
diff --git a/2015/day23-input b/2015/day23-input
new file mode 100644
index 0000000..cad5dc2
--- /dev/null
+++ b/2015/day23-input
@@ -0,0 +1,48 @@
+jio a, +22
+inc a
+tpl a
+tpl a
+tpl a
+inc a
+tpl a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+jmp +19
+tpl a
+tpl a
+tpl a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+inc a
+tpl a
+inc a
+tpl a
+tpl a
+jio a, +8
+inc b
+jie a, +4
+tpl a
+inc a
+jmp +2
+hlf a
+jmp -7
diff --git a/2015/day24-input b/2015/day24-input
new file mode 100644
index 0000000..e204f7d
--- /dev/null
+++ b/2015/day24-input
@@ -0,0 +1,28 @@
+1
+3
+5
+11
+13
+17
+19
+23
+29
+31
+37
+41
+43
+47
+53
+59
+67
+71
+73
+79
+83
+89
+97
+101
+103
+107
+109
+113
diff --git a/2015/day25-input b/2015/day25-input
new file mode 100644
index 0000000..c5c38e6
--- /dev/null
+++ b/2015/day25-input
@@ -0,0 +1 @@
+To continue, please consult the code grid in the manual.  Enter the code at row 2947, column 3029.
diff --git a/2018/day10-input b/2018/day10-input
new file mode 100644
index 0000000..55d6e38
--- /dev/null
+++ b/2018/day10-input
@@ -0,0 +1,385 @@
+position=<-52592,  31869> velocity=< 5, -3>
+position=<-20934,  52988> velocity=< 2, -5>
+position=<-20910,  31871> velocity=< 2, -3>
+position=<-31503, -52596> velocity=< 3,  5>
+position=<-42061, -10364> velocity=< 4,  1>
+position=< 10776, -31475> velocity=<-1,  3>
+position=<-10348,  31875> velocity=< 1, -3>
+position=< 52969,  52985> velocity=<-5, -5>
+position=< 31848, -10366> velocity=<-3,  1>
+position=<-10376, -10366> velocity=< 1,  1>
+position=<-10376, -31474> velocity=< 1,  3>
+position=<-42058,  52990> velocity=< 4, -5>
+position=<-52628, -10358> velocity=< 5,  1>
+position=<-52630,  52985> velocity=< 5, -5>
+position=< 31888, -31474> velocity=<-3,  3>
+position=<-31492,  42429> velocity=< 3, -4>
+position=< 31892,  52988> velocity=<-3, -5>
+position=< 52961,  52989> velocity=<-5, -5>
+position=<-20908, -42031> velocity=< 2,  4>
+position=<-52627,  10759> velocity=< 5, -1>
+position=< 21307, -42034> velocity=<-2,  4>
+position=<-20937, -31475> velocity=< 2,  3>
+position=< 21315, -52594> velocity=<-2,  5>
+position=< 10744, -10366> velocity=<-1,  1>
+position=< 21287, -10358> velocity=<-2,  1>
+position=< 21298, -31478> velocity=<-2,  3>
+position=<-10384,  31866> velocity=< 1, -3>
+position=< 52953, -10364> velocity=<-5,  1>
+position=<-42029, -52597> velocity=< 4,  5>
+position=< 21319,  10757> velocity=<-2, -1>
+position=<-10352,  21310> velocity=< 1, -2>
+position=<-10395, -42034> velocity=< 1,  4>
+position=< 10756,  31873> velocity=<-1, -3>
+position=<-10384,  42425> velocity=< 1, -4>
+position=<-42050,  42427> velocity=< 4, -4>
+position=< 31866,  10759> velocity=<-3, -1>
+position=<-52592, -10357> velocity=< 5,  1>
+position=<-42066,  31874> velocity=< 4, -3>
+position=<-52605, -20924> velocity=< 5,  2>
+position=< 21274,  10753> velocity=<-2, -1>
+position=<-20933,  42433> velocity=< 2, -4>
+position=< 52961, -10365> velocity=<-5,  1>
+position=<-20913, -20923> velocity=< 2,  2>
+position=< 10716, -42039> velocity=<-1,  4>
+position=<-42070,  21315> velocity=< 4, -2>
+position=<-42040,  31875> velocity=< 4, -3>
+position=<-42029,  52989> velocity=< 4, -5>
+position=< 52953, -20917> velocity=<-5,  2>
+position=<-42058, -10364> velocity=< 4,  1>
+position=<-52574, -42031> velocity=< 5,  4>
+position=<-52600, -42032> velocity=< 5,  4>
+position=< 10740, -52598> velocity=<-1,  5>
+position=< 42438, -20919> velocity=<-4,  2>
+position=<-20937, -31477> velocity=< 2,  3>
+position=<-42072,  42427> velocity=< 4, -4>
+position=<-20921, -52598> velocity=< 2,  5>
+position=<-52619, -20918> velocity=< 5,  2>
+position=<-31467, -20915> velocity=< 3,  2>
+position=<-42066, -10366> velocity=< 4,  1>
+position=< 21334, -42035> velocity=<-2,  4>
+position=< 21309,  21317> velocity=<-2, -2>
+position=< 42414, -10364> velocity=<-4,  1>
+position=< 21290,  21311> velocity=<-2, -2>
+position=< 52972, -20917> velocity=<-5,  2>
+position=< 10776,  10755> velocity=<-1, -1>
+position=< 21298, -10363> velocity=<-2,  1>
+position=< 42430,  52986> velocity=<-4, -5>
+position=< 21294,  21312> velocity=<-2, -2>
+position=< 10752, -10357> velocity=<-1,  1>
+position=< 42438,  21315> velocity=<-4, -2>
+position=<-42050, -20915> velocity=< 4,  2>
+position=<-31504, -52598> velocity=< 3,  5>
+position=< 52999,  21317> velocity=<-5, -2>
+position=<-10390, -10362> velocity=< 1,  1>
+position=< 21300,  10754> velocity=<-2, -1>
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+position=< 10725, -10366> velocity=<-1,  1>
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+position=<-10358,  10754> velocity=< 1, -1>
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+position=< 42430,  31871> velocity=<-4, -3>
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+position=< 21295,  10753> velocity=<-2, -1>
+position=< 42390, -42036> velocity=<-4,  4>
+position=< 10721,  52990> velocity=<-1, -5>
+position=< 21285, -52598> velocity=<-2,  5>
+position=< 31837, -42037> velocity=<-3,  4>
+position=<-42018,  52989> velocity=< 4, -5>
+position=<-10355,  31871> velocity=< 1, -3>
+position=< 42411, -31477> velocity=<-4,  3>
+position=<-52632,  42428> velocity=< 5, -4>
+position=< 42441,  10759> velocity=<-4, -1>
+position=<-52624, -10365> velocity=< 5,  1>
+position=<-10360, -42038> velocity=< 1,  4>
+position=< 21314,  21311> velocity=<-2, -2>
+position=< 52988,  42430> velocity=<-5, -4>
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+position=<-52592,  10753> velocity=< 5, -1>
+position=<-20954, -52590> velocity=< 2,  5>
+position=<-52611, -42033> velocity=< 5,  4>
+position=< 31841,  42424> velocity=<-3, -4>
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+position=<-20958,  42429> velocity=< 2, -4>
+position=< 10737,  42432> velocity=<-1, -4>
+position=<-52624, -31477> velocity=< 5,  3>
+position=<-20949,  10754> velocity=< 2, -1>
+position=< 10729, -20923> velocity=<-1,  2>
+position=< 31892, -52597> velocity=<-3,  5>
+position=<-10355,  21314> velocity=< 1, -2>
+position=< 52960,  42428> velocity=<-5, -4>
+position=<-52587,  42424> velocity=< 5, -4>
+position=<-52592,  52983> velocity=< 5, -5>
+position=< 31832,  21315> velocity=<-3, -2>
+position=< 52956, -10362> velocity=<-5,  1>
+position=< 52992,  42428> velocity=<-5, -4>
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+position=<-31504,  21308> velocity=< 3, -2>
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+position=<-20907,  31866> velocity=< 2, -3>
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+position=< 31865, -10357> velocity=<-3,  1>
+position=<-52611,  52988> velocity=< 5, -5>
+position=< 42441,  31866> velocity=<-4, -3>
+position=< 42438,  21309> velocity=<-4, -2>
+position=< 42398,  21310> velocity=<-4, -2>
+position=<-10352, -10360> velocity=< 1,  1>
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+position=< 52948,  42429> velocity=<-5, -4>
+position=< 52993,  21311> velocity=<-5, -2>
+position=<-10384, -52598> velocity=< 1,  5>
+position=<-42029, -31473> velocity=< 4,  3>
+position=<-10375, -52589> velocity=< 1,  5>
+position=<-31460, -31475> velocity=< 3,  3>
+position=< 42418, -31473> velocity=<-4,  3>
+position=<-10392,  52984> velocity=< 1, -5>
+position=< 10767,  10750> velocity=<-1, -1>
+position=<-52573,  52991> velocity=< 5, -5>
+position=<-52611,  52984> velocity=< 5, -5>
+position=<-52592,  42431> velocity=< 5, -4>
+position=<-10380,  21312> velocity=< 1, -2>
+position=<-42029, -42038> velocity=< 4,  4>
+position=<-42056, -10362> velocity=< 4,  1>
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+position=<-10395,  31868> velocity=< 1, -3>
+position=<-42045,  52991> velocity=< 4, -5>
+position=< 21319,  21313> velocity=<-2, -2>
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+position=<-42033, -31478> velocity=< 4,  3>
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+position=< 21301, -31482> velocity=<-2,  3>
+position=<-10365, -31473> velocity=< 1,  3>
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+position=< 21287, -52592> velocity=<-2,  5>
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+position=<-52627,  31872> velocity=< 5, -3>
+position=< 31875,  52986> velocity=<-3, -5>
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+position=< 52964, -20915> velocity=<-5,  2>
+position=<-31488,  42428> velocity=< 3, -4>
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+position=< 21275,  42425> velocity=<-2, -4>
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+position=< 31845, -52591> velocity=<-3,  5>
+position=< 21285, -31473> velocity=<-2,  3>
+position=< 21319,  21312> velocity=<-2, -2>
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+position=< 52956, -52591> velocity=<-5,  5>
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+position=< 42400,  10754> velocity=<-4, -1>
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+position=< 10740,  10756> velocity=<-1, -1>
+position=<-20898,  42424> velocity=< 2, -4>
+position=< 21319, -42031> velocity=<-2,  4>
+position=<-52574,  10759> velocity=< 5, -1>
+position=< 21274, -31476> velocity=<-2,  3>
+position=<-31463, -10358> velocity=< 3,  1>
+position=<-20950,  21311> velocity=< 2, -2>
+position=<-52600, -31474> velocity=< 5,  3>
+position=< 31864,  42431> velocity=<-3, -4>
+position=< 21279,  21316> velocity=<-2, -2>
+position=< 21287,  42426> velocity=<-2, -4>
+position=< 10716,  10754> velocity=<-1, -1>
+position=<-42042,  52989> velocity=< 4, -5>
+position=<-31492,  42427> velocity=< 3, -4>
+position=< 21298, -10364> velocity=<-2,  1>
+position=<-42040,  21308> velocity=< 4, -2>
+position=<-42045,  10750> velocity=< 4, -1>
+position=< 31835, -20919> velocity=<-3,  2>
+position=< 10773,  42433> velocity=<-1, -4>
+position=< 42443,  10758> velocity=<-4, -1>
+position=< 52973, -52598> velocity=<-5,  5>
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+position=< 52985,  31875> velocity=<-5, -3>
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+position=< 31884, -20924> velocity=<-3,  2>
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+position=<-31508,  10756> velocity=< 3, -1>
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+position=<-42042,  10750> velocity=< 4, -1>
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+position=<-20898, -10365> velocity=< 2,  1>
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+position=<-31500,  31875> velocity=< 3, -3>
+position=<-52584,  52990> velocity=< 5, -5>
+position=< 21314,  52990> velocity=<-2, -5>
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+position=<-10376,  31875> velocity=< 1, -3>
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+position=<-31491, -42040> velocity=< 3,  4>
+position=<-20918, -42036> velocity=< 2,  4>
+position=<-20947,  10754> velocity=< 2, -1>
+position=< 52953, -31474> velocity=<-5,  3>
+position=<-42031,  31870> velocity=< 4, -3>
+position=<-52583,  42424> velocity=< 5, -4>
+position=< 42393, -20919> velocity=<-4,  2>
+position=< 42411,  10750> velocity=<-4, -1>
+position=< 10716, -42032> velocity=<-1,  4>
+position=<-31503,  42429> velocity=< 3, -4>
+position=<-42053,  10753> velocity=< 4, -1>
+position=<-31481, -20920> velocity=< 3,  2>
+position=<-31468, -31481> velocity=< 3,  3>
+position=< 21284, -20924> velocity=<-2,  2>
+position=< 42409, -42036> velocity=<-4,  4>
+position=<-42063,  31875> velocity=< 4, -3>
+position=< 42450, -10358> velocity=<-4,  1>
+position=<-20897, -52598> velocity=< 2,  5>
+position=< 42407, -10362> velocity=<-4,  1>
+position=< 52983,  10754> velocity=<-5, -1>
+position=< 52969, -31477> velocity=<-5,  3>
+position=< 53000, -10357> velocity=<-5,  1>
+position=<-52619, -31475> velocity=< 5,  3>
+position=< 10756,  10756> velocity=<-1, -1>
+position=< 31889, -42031> velocity=<-3,  4>
+position=<-31511,  52985> velocity=< 3, -5>
+position=<-31511,  42425> velocity=< 3, -4>
+position=< 21322, -31476> velocity=<-2,  3>
+position=< 10764,  21312> velocity=<-1, -2>
+position=< 10724,  21314> velocity=<-1, -2>
+position=< 53001,  10758> velocity=<-5, -1>
+position=<-52607, -10362> velocity=< 5,  1>
+position=<-31482, -20919> velocity=< 3,  2>
+position=< 21276,  10754> velocity=<-2, -1>
+position=< 42426,  21317> velocity=<-4, -2>
+position=< 21299, -10362> velocity=<-2,  1>
+position=< 42450, -20922> velocity=<-4,  2>
+position=< 10719,  10755> velocity=<-1, -1>
+position=<-52623,  10759> velocity=< 5, -1>
+position=< 31840, -42040> velocity=<-3,  4>
+position=< 10724, -20918> velocity=<-1,  2>
+position=<-10341,  21308> velocity=< 1, -2>
+position=< 42403, -10365> velocity=<-4,  1>
+position=< 31877,  31866> velocity=<-3, -3>
+position=<-42048,  31875> velocity=< 4, -3>
+position=< 52953,  52986> velocity=<-5, -5>
+position=<-10340, -10360> velocity=< 1,  1>
+position=< 31869,  10752> velocity=<-3, -1>
+position=<-52612,  21312> velocity=< 5, -2>
+position=<-42053, -52592> velocity=< 4,  5>
+position=<-31490,  10750> velocity=< 3, -1>
diff --git a/2018/day10.py b/2018/day10.py
new file mode 100644
index 0000000..38958fa
--- /dev/null
+++ b/2018/day10.py
@@ -0,0 +1,53 @@
+with open('day10-input', 'r') as file:
+  data = [l.strip('\n') for l in file]
+import numpy as np
+
+positions = []
+velocities = []
+
+for line in data:
+  pos = [int(line[10:16]), -int(line[18:24])]  # Invert Y for graphing purposes
+  vel = [int(line[36:38]), -int(line[39:42])]  # Invert Y for graphing purposes
+  positions.append(pos)
+  velocities.append(vel)
+
+max_t = 11000
+curr_pos = np.vstack(positions)
+vels = np.vstack(velocities)
+positions = np.empty((385,2,max_t))
+
+for t in range(max_t):
+  positions[:,:,t] = curr_pos + t*vels
+
+from pyqtgraph.Qt import QtCore, QtGui
+import pyqtgraph as pg
+
+app = QtGui.QApplication([])
+win = pg.GraphicsLayoutWidget(show=True)
+win.resize(2000,600)
+win.setWindowTitle('Scatter Plot')
+
+p5 = win.addPlot(title="Scatter Plot")
+p5.plot(positions[:,:,0], pen=None, symbol='s', symbolPen=None, symbolSize=10, symbolBrush=(100, 100, 255, 250))
+
+
+def mouseMoved(evt):
+  pos = evt[0]  ## using signal proxy turns original arguments into a tuple
+  if p5.sceneBoundingRect().contains(pos):
+    x = pos.x()
+    # between 1000 and 1100
+    x = min(x, 2000)//5 + 10300  # 10558
+
+    print(x)
+    if 0 <= x < max_t:
+      p5.clear()
+      p5.plot(positions[:, :, int(x)], pen=None, symbol='s', symbolPen=None, symbolSize=10, symbolBrush=(100, 100, 255, 250))
+
+proxy = pg.SignalProxy(p5.scene().sigMouseMoved, rateLimit=60, slot=mouseMoved)
+
+
+## Start Qt event loop unless running in interactive mode.
+if __name__ == '__main__':
+  import sys
+  if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
+    QtGui.QApplication.instance().exec_()