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