B3311331313231311331322331333132313133313113313113313232233132332322131   >>    B331133131323131133132233133313231313331311331311331323223313233232213   <<    B3311331313231311331322331333132313133313113313113313232233132332322133   >>      B3311331313231311331322331333132313133313113313113313232233132332322132   >>