Task: Program Execution
Input (English): 1, 8, ['J', 'B', '9175', '1991', 'M', '677', '1321', 'c', '4429', 'b', 'T', 'O', '3949', '5619', 'S', '8861', 'a', '2769', '9091', 'z', 'a', '3703', '9523', 'N', 'p', '4451', '5563']
Output (English): JB91751991M6771321c