Task: Program Execution
Input (English): 7, 15, ['l', 'P', 'B', '2541', 'H', '9355', '8253', 'i', 'U', 'm', 'X', 'F', '6023', '97', 'z', 'n', 'c', '5751', '8427', 'V', '1851', '1629', '9485']
Output (English): z976023FXmUi8253