Task: Program Execution
Input (English): 1, 7, ['3959', 'H', 'r', 'r', '3109', '8975', 'L', '3231', 'k', 'M', 'w', 'V', 'F', '3993', '5373', '3577', 'z', '285']
Output (English): L89753109rrH3959