Task: Program Execution
Input (English): 1793 7405 F L 6413 y a 2329 671 9903 2341 p 1849 9791 w i q R S 8357 x c r 7099 3903 O 9417 887 6515 y 4061 a X Q l h e
Output (English): 1, 2, 5, 8, 9, 10, 11, 13, 14, 20, 24, 25, 27, 28, 29, 31