Task: Program Execution
Input (English): W, q, B, 7, I, q, g
Output (English): [['W', 'q', 'B', '7', 'I', 'q'], ['W', 'q', 'B', '7', 'I', 'g'], ['W', 'q', 'B', '7', 'q', 'g'], ['W', 'q', 'B', 'I', 'q', 'g'], ['W', 'q', '7', 'I', 'q', 'g'], ['W', 'B', '7', 'I', 'q', 'g'], ['q', 'B', '7', 'I', 'q', 'g']]