B3311331313231311331322331333132313331322331323133313331323133323312131   >>    B331133131323131133132233133313231333132233132313331333132313332331213   <<    B3311331313231311331322331333132313331322331323133313331323133323312133   >>      B3311331313231311331322331333132313331322331323133313331323133323312132   >>