B3311331313231311331322331333132313331322331323133313231311131211   >>    B331133131323131133132233133313231333132233132313331323131113121   <<    B3311331313231311331322331333132313331322331323133313231311131213   >>      B3311331313231311331322331333132313331322331323133313231311131212   >>