Task: Program Execution
Input (English): 2721 k 4561 w 1163 1669 c t 8651 5125 D 8857 583 s J W 205 2807 277 7863 8075 k I k x 4331 6013 8587 O 5599 3477
Output (English): 2, 4, 7, 8, 11, 14, 15, 16, 22, 23, 24, 25, 29