Task: Program Execution
Input (English): 8, M, 7, T, s, X, 4
Output (English): [['8', 'M', '7', 'T', 's', 'X'], ['8', 'M', '7', 'T', 's', '4'], ['8', 'M', '7', 'T', 'X', '4'], ['8', 'M', '7', 's', 'X', '4'], ['8', 'M', 'T', 's', 'X', '4'], ['8', '7', 'T', 's', 'X', '4'], ['M', '7', 'T', 's', 'X', '4']]