Task: Program Execution
Input (English): C, 6, A, 8, n, k, 5
Output (English): [['C', '6', 'A', '8', 'n', 'k'], ['C', '6', 'A', '8', 'n', '5'], ['C', '6', 'A', '8', 'k', '5'], ['C', '6', 'A', 'n', 'k', '5'], ['C', '6', '8', 'n', 'k', '5'], ['C', 'A', '8', 'n', 'k', '5'], ['6', 'A', '8', 'n', 'k', '5']]