B3311331313231311331322331333132313331322331323133313331323223313311212231   >>    B331133131323131133132233133313231333132233132313331333132322331331121223   <<    B3311331313231311331322331333132313331322331323133313331323223313311212233   >>      B3311331313231311331322331333132313331322331323133313331323223313311212232   >>