B3311331313231311331322331333131133132313131133133313232233132313231111332211   >>    B331133131323131133132233133313113313231313113313331323223313231323111133221   <<    B3311331313231311331322331333131133132313131133133313232233132313231111332213   >>      B3311331313231311331322331333131133132313131133133313232233132313231111332212   >>