B3311331313231311331322331333132322331323231333133313231323131121131211   >>    B331133131323131133132233133313232233132323133313331323132313112113121   <<    B3311331313231311331322331333132322331323231333133313231323131121131213   >>      B3311331313231311331322331333132322331323231333133313231323131121131212   >>