Task: Program Execution
Input (English): 17, 20, ['6555', 'J', '487', '6189', 'e', 'D', 'x', '455', '3613', '1193', '6557', '8693', '1837', '8369', 'J', 'X', 'O', '6669', 'V', 'Q', 'Z', 'n', 'c', 'a', 'Q']
Output (English): QV6669O