B33113313132313113313223313331323221212111113331323223313232212111   >>    B3311331313231311331322331333132322121211111333132322331323221211   <<    B33113313132313113313223313331323221212111113331323223313232212113   >>      B33113313132313113313223313331323221212111113331323223313232212112   >>