Task: Program Execution
Input (English): z, 2, 2, a, 2, 6, k
Output (English): [['z', '2', '2', 'a', '2', '6'], ['z', '2', '2', 'a', '2', 'k'], ['z', '2', '2', 'a', '6', 'k'], ['z', '2', '2', '2', '6', 'k'], ['z', '2', 'a', '2', '6', 'k'], ['z', '2', 'a', '2', '6', 'k'], ['2', '2', 'a', '2', '6', 'k']]