Task: Program Execution
Input (English): 13, 21, ['3985', '6595', '3495', 'Y', 'q', '5917', '113', 'x', '2845', 'E', '7635', 'd', '231', 't', '881', '8701', 'v', '9571', 'A', '8121', '3621', 'U']
Output (English): 31126