Task: Program Execution
Input (English): 2845 a 8021 H p 8489 4607 1327 8947 b 9487 1953 y j 337 V 4197 R Q w 1087 q 57 H C N A 9395 k K 637
Output (English): 1, 3, 6, 7, 8, 9, 11, 12, 15, 17, 21, 23, 28, 31