Task: Program Execution
Input (English): l, 8, i, o, 7, 6, i
Output (English): [['l', '8', 'i', 'o', '7', '6'], ['l', '8', 'i', 'o', '7', 'i'], ['l', '8', 'i', 'o', '6', 'i'], ['l', '8', 'i', '7', '6', 'i'], ['l', '8', 'o', '7', '6', 'i'], ['l', 'i', 'o', '7', '6', 'i'], ['8', 'i', 'o', '7', '6', 'i']]