Task: Program Execution
Input (English): 6, x, 3, 9, i, b
Output (English): [['6', 'x', '3', '9', 'i'], ['6', 'x', '3', '9', 'b'], ['6', 'x', '3', 'i', 'b'], ['6', 'x', '9', 'i', 'b'], ['6', '3', '9', 'i', 'b'], ['x', '3', '9', 'i', 'b']]