Task: Program Execution
Input (English): 7, ['D', 'T', 'U', '3141', '3729', 'r', '7987', '815', '1487', 'Y', '4159', 'o', '9557', 'i', '8759', 'l', 'l']
Output (English): D, T, U, 3141, 3729, r, 7987