Task: Program Execution
Input (English): 22, 23, ['3807', '1571', '6271', '6729', 'Q', 'z', 'm', 's', 'Z', '9911', '6345', 'm', '3915', 'Q', 'P', '4669', '1329', '7419', '8603', 'E', '443', 'g', '5171']
Output (English): g5171