Task: Program Execution
Input (English): m, 8, O, 2, b, i, t
Output (English): [['m', '8', 'O', '2', 'b', 'i'], ['m', '8', 'O', '2', 'b', 't'], ['m', '8', 'O', '2', 'i', 't'], ['m', '8', 'O', 'b', 'i', 't'], ['m', '8', '2', 'b', 'i', 't'], ['m', 'O', '2', 'b', 'i', 't'], ['8', 'O', '2', 'b', 'i', 't']]