Task: Program Execution
Input (English): 1, ['2851', 'J', 'J', 'K', '8637', 'a', 'l', '8191', '1667', 'J', '9387', 'n', '9829', '5335', 'i', 'F', '1987', 'u', 'Y', '2851', '9513', '7861']
Output (English): 2851