B3311331313231311331322331333132313233313231333131333133313232331121   >>    B331133131323131133132233133313231323331323133313133313331323233112   <<    B3311331313231311331322331333132313233313231333131333133313232331123   >>      B3311331313231311331322331333132313233313231333131333133313232331122   >>