Task: Program Execution
Input (English): 10, 20, ['Z', '8141', '9923', 'X', '1689', '561', '5279', '8905', 'b', '6449', '2043', 'm', '1217', '857', '2335', '925', '4745', 'g', 'X', 'J', 'm', 'j', 'V', '5191', '6257']
Output (English): 18571