C13332313311211113313331333133313331323132233132313232311312121   >>    C1333231331121111331333133313331333132313223313231323231131212   <<    C13332313311211113313331333133313331323132233132313232311312123   >>      C13332313311211113313331333133313331323132233132313232311312122   >>