B3311331313231311331322331333132323331323132333133313232213232211   >>    B331133131323131133132233133313232333132313233313331323221323221   <<    B3311331313231311331322331333132323331323132333133313232213232213   >>      B3311331313231311331322331333132323331323132333133313232213232212   >>