Task: Program Execution
Input (English): 6431, 6557, 7823, I, 4075, 9833, p, M, 479, E, S, 3869, 717, 275, 1859, R, M, W, 4007, 7391, 3865, 1721, 611, k
Output (English): 1, 2, 3, 5, 6, 9, 12, 13, 14, 15, 19, 20, 21, 22, 23