Task: Program Execution
Input (English): P 7511 4293 6015 9033 6643 V 263 4539 9625 a C c 345 X 8813 9469 8969 M v T P 2889 d 7707 u C x
Output (English): 2, 3, 4, 5, 6, 8, 9, 10, 14, 16, 17, 18, 23, 25