Task: Program Execution
Input (English): 7237 v 4723 1427 2975 2617 E 8753 h m 927 457 a 379 x W u 9325 705 2761 c 8433 9855 l 5873 4139 y 7789 q 1737
Output (English): 2, 7, 9, 10, 13, 15, 16, 17, 21, 24, 27, 29