Task: Program Execution
Input (English): X 871 k 2277 1731 2455 8843 1299 n 6385 2627 F O W 2519 E y 7835 7189 e 2717 p o K 2121 p 3521 l 6999 Y x
Output (English): 1, 3, 9, 12, 13, 14, 16, 17, 20, 22, 23, 24, 26, 28, 30, 31