Task: Program Execution
Input (English): 1, 7, ['j', '4207', '4525', 'i', 'f', '7335', '4687', 'b', 'f', 'X', '3115', '485', 'f', '9339', '5741', 'c', '8043', 'Z', '3823', 'o', '7451', 'I']
Output (English): j42074525if73354687