B3311331313231311331322331333132313331323133313233313231322331311312131   >>    B331133131323131133132233133313231333132313331323331323132233131131213   <<    B3311331313231311331322331333132313331323133313233313231322331311312133   >>      B3311331313231311331322331333132313331323133313233313231322331311312132   >>