Task: Program Execution
Input (English): 2181, 5909, S, 3749, 6813, M, 5593, 5503, W, 4209, 3915, 7661, x, w, Z, 2691, a, 4897, R, 1589, 13, c, r
Output (English): 3, 6, 9, 13, 14, 15, 17, 19, 22, 23