Task: Program Execution
Input (English): 3543, 7615, z, F, 5131, y, 5631, 4139, E, 6111, O, 8129, 2795, 105, 7773, c, 2527, w, 4851
Output (English): 1, 2, 5, 7, 8, 10, 12, 13, 14, 15, 17, 19