Task: Program Execution
Input (English): 2157 567 L P k 9501 C B 6817 5551 2291 6739 i 3067 T 5011 9347 v a 4345 2269 9023 H U H 7685 6581 Z 5847
Output (English): 1, 2, 6, 9, 10, 11, 12, 14, 16, 17, 20, 21, 22, 26, 27, 29