B3311331313231311331322331333132313331323131323223313232212323132313232331   >>    B331133131323131133132233133313231333132313132322331323221232313231323233   <<    B3311331313231311331322331333132313331323131323223313232212323132313232333   >>      B3311331313231311331322331333132313331323131323223313232212323132313232332   >>