B33113313132313113313223313331323133313231313232233132221211131   >>    B3311331313231311331322331333132313331323131323223313222121113   <<    B33113313132313113313223313331323133313231313232233132221211133   >>      B33113313132313113313223313331323133313231313232233132221211132   >>