B3311331313231311331322331333132313331323131323223313231121132321   >>    B331133131323131133132233133313231333132313132322331323112113232   <<    B3311331313231311331322331333132313331323131323223313231121132323   >>      B3311331313231311331322331333132313331323131323223313231121132322   >>