Task: Program Execution
Input (English): 4187 607 G B 2067 6569 531 491 5287 y 5261 x 7671 5975 o 8705 2375 5879 9049 3879 c l M 7377 C M 5259 B v x 6787 2043 4941 7443 k l
Output (English): 1, 2, 5, 6, 7, 8, 9, 11, 13, 14, 16, 17, 18, 19, 20, 24, 27, 31, 32, 33, 34