B3311331313231311331322331333132322331323231333133313231323222221   >>    B331133131323131133132233133313232233132323133313331323132322222   <<    B3311331313231311331322331333132322331323231333133313231323222223   >>      B3311331313231311331322331333132322331323231333133313231323222222   >>