B3311331313231311331322331333132313231323331333131323133313232233132321   >>    B331133131323131133132233133313231323132333133313132313331323223313232   <<    B3311331313231311331322331333132313231323331333131323133313232233132323   >>      B3311331313231311331322331333132313231323331333131323133313232233132322   >>