B3311331313231311331322331333132313231333133313311211113313232233112113121121   >>    B331133131323131133132233133313231323133313331331121111331323223311211312112   <<    B3311331313231311331322331333132313231333133313311211113313232233112113121123   >>      B3311331313231311331322331333132313231333133313311211113313232233112113121122   >>