B chair

B chairB chairB chairB chairB chairB chair
B chairB chairB chairB chairB chairB chair
B chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chairB chair