B3311331313231311331322331333132313133313113313113313232233131133131113221   >>    B331133131323131133132233133313231313331311331311331323223313113313111322   <<    B3311331313231311331322331333132313133313113313113313232233131133131113223   >>      B3311331313231311331322331333132313133313113313113313232233131133131113222   >>