Task: Program Execution
Input (English): 14, 14, ['9673', '5777', 'f', 'f', '1363', 'Q', 'x', '813', 'k', '265', 'c', '4279', '8919', 'a', '9267', '4391', '1845', '7543', 'd', '8969', 'M']
Output (English): a