B3311331313231311331322331333132313231333133313311211113313223211131   >>    B331133131323131133132233133313231323133313331331121111331322321113   <<    B3311331313231311331322331333132313231333133313311211113313223211133   >>      B3311331313231311331322331333132313231333133313311211113313223211132   >>