Task: Program Execution
Input (English): 0, e, 2, 1, f, 6, 5
Output (English): [['0', 'e', '2', '1', 'f', '6'], ['0', 'e', '2', '1', 'f', '5'], ['0', 'e', '2', '1', '6', '5'], ['0', 'e', '2', 'f', '6', '5'], ['0', 'e', '1', 'f', '6', '5'], ['0', '2', '1', 'f', '6', '5'], ['e', '2', '1', 'f', '6', '5']]