Task: Program Execution
Input (English): 7, M, S, 7, 2, 6
Output (English): [['7', 'M', 'S', '7', '2'], ['7', 'M', 'S', '7', '6'], ['7', 'M', 'S', '2', '6'], ['7', 'M', '7', '2', '6'], ['7', 'S', '7', '2', '6'], ['M', 'S', '7', '2', '6']]