B3311331313231311331322331333132333131333131333133313231323233111   >>    B331133131323131133132233133313233313133313133313331323132323311   <<    B3311331313231311331322331333132333131333131333133313231323233113   >>      B3311331313231311331322331333132333131333131333133313231323233112   >>