Task: Program Execution
Input (English): b, 4, 2, Q, s, 5
Output (English): [['b', '4', '2', 'Q', 's'], ['b', '4', '2', 'Q', '5'], ['b', '4', '2', 's', '5'], ['b', '4', 'Q', 's', '5'], ['b', '2', 'Q', 's', '5'], ['4', '2', 'Q', 's', '5']]