Task: Program Execution
Input (English): P B f L 2133 5199 9407 B 6433 C y 7223 5657 j 8289 1345 W 4103 y 4483 o d 9707 1723 I s v a y 8787 6649 417 I x k
Output (English): 5, 6, 7, 9, 12, 13, 15, 16, 18, 20, 23, 24, 30, 31, 32