Task: Program Execution
Input (English): 2127, 1193, X, l, 6065, 609, X, 1007, x, k, 4257, y, 9079, 2277, 9325, H, 5665, O, 6255, j, d, b, 2701, O
Output (English): 1, 2, 5, 6, 8, 11, 13, 14, 15, 17, 19, 23