Task: Program Execution
Input (English): 2, 4, ['3903', '6957', '2661', 'P', '3547', '7945', '4785', 'k', '4731', '4341', 'f', '5653', 'e', '1385', '2301', '3521', '1267', '5611', '3145', '9241', '67']
Output (English): P26616957