Task: Program Execution
Input (English): 11, 13, ['457', 'J', '9711', 'u', '5351', '3639', '503', 'r', 'J', 'Y', 'Z', '5859', 'g', 'b', 'V', '5245', '769', 'B', '563', 'c', '2279', 'T', '2239', '1321', 'T', '3963', 'J']
Output (English): g5859Z