Task: Program Execution
Input (English): 6, U, 5, 4, 7, v, j
Output (English): [['6', 'U', '5', '4', '7', 'v'], ['6', 'U', '5', '4', '7', 'j'], ['6', 'U', '5', '4', 'v', 'j'], ['6', 'U', '5', '7', 'v', 'j'], ['6', 'U', '4', '7', 'v', 'j'], ['6', '5', '4', '7', 'v', 'j'], ['U', '5', '4', '7', 'v', 'j']]