Task: Program Execution
Input (English): a x w 5653 B 777 z 2607 7287 8249 b c 6995 s P 4197 u A S Z 6369 H 2341 1657 533 7181 3111 3741 f f t
Output (English): 4, 6, 8, 9, 10, 13, 16, 21, 23, 24, 25, 26, 27, 28