Task: Program Execution
Input (English): 4783, r, Q, 2081, b, 7277, 1013, 7347, M, N, 9957, 8619, 4117, 6455, u, 1531, z, 571, C, l, R, 3831, y, f
Output (English): 1, 4, 6, 7, 8, 11, 12, 13, 14, 16, 18, 22