Task: Program Execution
Input (English): g 8377 4021 3471 x d 6797 139 9363 8557 735 H 9205 8471 3545 517 P r 4329 937 6367 3529 C B 4401 p k 2477 n
Output (English): 2, 3, 4, 7, 8, 9, 10, 11, 13, 14, 15, 16, 19, 20, 21, 22, 25, 28