Task: Program Execution
Input (English): v, a, 9, J, x, 4
Output (English): [['v', 'a', '9', 'J', 'x'], ['v', 'a', '9', 'J', '4'], ['v', 'a', '9', 'x', '4'], ['v', 'a', 'J', 'x', '4'], ['v', '9', 'J', 'x', '4'], ['a', '9', 'J', 'x', '4']]