B3311331313231311331322331333131133132313131133133313232233132313331323211   >>    B331133131323131133132233133313113313231313113313331323223313231333132321   <<    B3311331313231311331322331333131133132313131133133313232233132313331323213   >>      B3311331313231311331322331333131133132313131133133313232233132313331323212   >>