C13332313311211113313331333133313331323132233133313331333211232313233121   >>    C1333231331121111331333133313331333132313223313331333133321123231323312   <<    C13332313311211113313331333133313331323132233133313331333211232313233123   >>      C13332313311211113313331333133313331323132233133313331333211232313233122   >>