Task: Program Execution
Input (English): 3, 5, ['X', '513', 'W', '2055', 'L', 'F', 'J', 'U', 'd', 'j', 'V', '6221', '7467', '275', 'H', 'O', '3325', '6253', '6997', '5455']
Output (English): L5502W