Task: Program Execution
Input (English): 4135 1831 3761 i b P 8925 4003 6513 e P 9973 5555 G 9513 8185 3093 e 9825 3407 N R Q 357 l i c
Output (English): 1, 2, 3, 7, 8, 9, 12, 13, 15, 16, 17, 19, 20, 24