Task: Program Execution
Input (English): 8, y, v, 4, y
Output (English): [['8', 'y', 'v', '4'], ['8', 'y', 'v', 'y'], ['8', 'y', '4', 'y'], ['8', 'v', '4', 'y'], ['y', 'v', '4', 'y']]