Task: Program Execution
Input (English): 149, 5253, 4951, f, 2799, 5265, 2107, 7717, 1647, o, e, g, 9421, q, c, 631, 5427
Output (English): 1, 2, 3, 5, 6, 7, 8, 9, 13, 16, 17