Task: Program Execution
Input (English): 7591, Z, 4803, 2171, C, 115, p, 3129, 7137, e, e, 6789, 2659, g, 2121, 8829, 6071
Output (English): 1, 3, 4, 6, 8, 9, 12, 13, 15, 16, 17