B3311331313231311331322331333132313231333131323223313331323132312311331   >>    B331133131323131133132233133313231323133313132322331333132313231231133   <<    B3311331313231311331322331333132313231333131323223313331323132312311333   >>      B3311331313231311331322331333132313231333131323223313331323132312311332   >>