Task: Program Execution
Input (English): 2, 6, f, 5, 3, 8, 1
Output (English): [['2', '6', 'f', '5', '3', '8'], ['2', '6', 'f', '5', '3', '1'], ['2', '6', 'f', '5', '8', '1'], ['2', '6', 'f', '3', '8', '1'], ['2', '6', '5', '3', '8', '1'], ['2', 'f', '5', '3', '8', '1'], ['6', 'f', '5', '3', '8', '1']]