Task: Program Execution
Input (English): 3, 7, ['2687', '8531', 'R', '7571', '3655', '5643', '5007', '9411', 'j', '6391', '7513', '5677', 'F', '3117', '6659', '675', '2283', '4903', 'G', '3067', '3245']
Output (English): 5007564336557571R