Task: Program Execution
Input (English): 4, 7, ['2719', '5555', 'g', 'U', '6579', '2279', 'k', 'g', '6871', 'O', 'I', 'Z', '7707', '4053', 'd', 'U', 'n', '6671', 'Y', 'y']
Output (English): U65792279k