Task: Program Execution
Input (English): 2, 7, ['J', 'W', '9607', '861', '3013', '2021', '8647', '5553', '9595', '8019', 'R', 'u', 's', '8491', '2889', '5589', '869', '5371', '1707', '2653', '6597', '9241', 'z', '7481']
Output (English): 7468120231031687069W