Task: Program Execution
Input (English): 5451, R, 1045, z, f, n, 8757, 3183, h, 5157, R, R, d, 5131, L, h, a, w, X
Output (English): 2, 4, 5, 6, 9, 11, 12, 13, 15, 16, 17, 18, 19