Task: Program Execution
Input (English): F, 9, C, B, E, Q, E
Output (English): [['F', '9', 'C', 'B', 'E', 'Q'], ['F', '9', 'C', 'B', 'E', 'E'], ['F', '9', 'C', 'B', 'Q', 'E'], ['F', '9', 'C', 'E', 'Q', 'E'], ['F', '9', 'B', 'E', 'Q', 'E'], ['F', 'C', 'B', 'E', 'Q', 'E'], ['9', 'C', 'B', 'E', 'Q', 'E']]