Task: Program Execution
Input (English): 2, k, g, 8, 6, k
Output (English): [['2', 'k', 'g', '8', '6'], ['2', 'k', 'g', '8', 'k'], ['2', 'k', 'g', '6', 'k'], ['2', 'k', '8', '6', 'k'], ['2', 'g', '8', '6', 'k'], ['k', 'g', '8', '6', 'k']]