Task: Program Execution
Input (English): 19, 19, ['U', '1893', 'v', 'H', '7937', 'z', 'e', '9699', 'T', '813', '3133', '3761', 'k', '8879', 'u', 'N', '6659', 'L', '621', 'V', '2313', 'l', 'B', '6877', '5427', 'G', 'p']
Output (English): 621