Task: Program Execution
Input (English): 17, 18, ['6661', '5921', 'P', 'c', 'U', 'v', 'v', 'B', '6623', '3307', 'b', '7033', 'T', '7821', '4013', 'H', '6463', '5087', 'Z']
Output (English): 6463, 5087