B3311331313231311331322331333132313231333133313311211113313331322333133121   >>    B331133131323131133132233133313231323133313331331121111331333132233313312   <<    B3311331313231311331322331333132313231333133313311211113313331322333133123   >>      B3311331313231311331322331333132313231333133313311211113313331322333133122   >>