Task: Program Execution
Input (English): 4, x, i, 1, T, M, 6
Output (English): [['4', 'x', 'i', '1', 'T', 'M'], ['4', 'x', 'i', '1', 'T', '6'], ['4', 'x', 'i', '1', 'M', '6'], ['4', 'x', 'i', 'T', 'M', '6'], ['4', 'x', '1', 'T', 'M', '6'], ['4', 'i', '1', 'T', 'M', '6'], ['x', 'i', '1', 'T', 'M', '6']]