Task: Program Execution
Input (English): 14, 18, ['6813', '2461', 'J', 'Q', '1967', 'p', '3121', 'y', '9691', 'R', '3395', 'z', 'c', 'm', 'G', 't', 'w', '4417', 'z', 'O', 'E', 'r', 'l', 'b', 'c']
Output (English): 4417