Task: Program Execution
Input (English): 7, 2, 4, 8, t, 2, m
Output (English): [['7', '2', '4', '8', 't', '2'], ['7', '2', '4', '8', 't', 'm'], ['7', '2', '4', '8', '2', 'm'], ['7', '2', '4', 't', '2', 'm'], ['7', '2', '8', 't', '2', 'm'], ['7', '4', '8', 't', '2', 'm'], ['2', '4', '8', 't', '2', 'm']]