Task: Program Execution
Input (English): 8, b, h, Q, 7, D
Output (English): [['8', 'b', 'h', 'Q', '7'], ['8', 'b', 'h', 'Q', 'D'], ['8', 'b', 'h', '7', 'D'], ['8', 'b', 'Q', '7', 'D'], ['8', 'h', 'Q', '7', 'D'], ['b', 'h', 'Q', '7', 'D']]