Task: Program Execution
Input (English): 6, 17, ['3387', '4857', 'X', 'R', '4385', 'U', '2849', '4767', '8623', '6641', '769', '2885', 'Z', '8019', '4547', '3007', '6239']
Output (English): 6239300745478019Z28857696641862347672849U