Task: Program Execution
Input (English): s, q, 9, 2, H, b
Output (English): [['s', 'q', '9', '2', 'H'], ['s', 'q', '9', '2', 'b'], ['s', 'q', '9', 'H', 'b'], ['s', 'q', '2', 'H', 'b'], ['s', '9', '2', 'H', 'b'], ['q', '9', '2', 'H', 'b']]