Task: Program Execution
Input (English): 2, 4, 6, T, k, 5, e
Output (English): [['2', '4', '6', 'T', 'k', '5'], ['2', '4', '6', 'T', 'k', 'e'], ['2', '4', '6', 'T', '5', 'e'], ['2', '4', '6', 'k', '5', 'e'], ['2', '4', 'T', 'k', '5', 'e'], ['2', '6', 'T', 'k', '5', 'e'], ['4', '6', 'T', 'k', '5', 'e']]