B3311331313231311331322331333132313331322223313231333133311233321   >>    B331133131323131133132233133313231333132222331323133313331123332   <<    B3311331313231311331322331333132313331322223313231333133311233323   >>      B3311331313231311331322331333132313331322223313231333133311233322   >>