Task: Program Execution
Input (English): x, 9, i, M, k, J, F
Output (English): [['x', '9', 'i', 'M', 'k', 'J'], ['x', '9', 'i', 'M', 'k', 'F'], ['x', '9', 'i', 'M', 'J', 'F'], ['x', '9', 'i', 'k', 'J', 'F'], ['x', '9', 'M', 'k', 'J', 'F'], ['x', 'i', 'M', 'k', 'J', 'F'], ['9', 'i', 'M', 'k', 'J', 'F']]