Task: Program Execution
Input (English): 5437, 2751, 7899, Z, 8179, 8327, 8509, 6659, r, 8685, 2723, x, o, 2409, 9989, z, 147, B
Output (English): 1, 2, 3, 5, 6, 7, 8, 10, 11, 14, 15, 17