B3311331313231311331322331333132313233313232233133313331323213221   >>    B331133131323131133132233133313231323331323223313331333132321322   <<    B3311331313231311331322331333132313233313232233133313331323213223   >>      B3311331313231311331322331333132313233313232233133313331323213222   >>