B33113313132313113313223313331323133313231313232233132322121211111121   >>    B3311331313231311331322331333132313331323131323223313232212121111112   <<    B33113313132313113313223313331323133313231313232233132322121211111123   >>      B33113313132313113313223313331323133313231313232233132322121211111122   >>