Task: Program Execution
Input (English): 15, 19, ['k', 'g', 'r', 'z', 'O', '5677', '9685', '9053', '2323', '7493', 'Z', 'h', '6875', 'u', '5307', 'V', '3949', 'r', '3891', '8559']
Output (English): 5307V3949r3891