B3311331313231311331322331333132313331322331323133313331333133313223323311211   >>    B331133131323131133132233133313231333132233132313331333133313331322332331121   <<    B3311331313231311331322331333132313331322331323133313331333133313223323311213   >>      B3311331313231311331322331333132313331322331323133313331333133313223323311212   >>