B3311331313231311331322331333132313231333131323223313233313231331   >>    B331133131323131133132233133313231323133313132322331323331323133   <<    B3311331313231311331322331333132313231333131323223313233313231333   >>      B3311331313231311331322331333132313231333131323223313233313231332   >>