B3311331313231311331322331333132313331322331323133313232233131232221   >>    B331133131323131133132233133313231333132233132313331323223313123222   <<    B3311331313231311331322331333132313331322331323133313232233131232223   >>      B3311331313231311331322331333132313331322331323133313232233131232222   >>