C13332313311211113313331333133313331323132233132313311213311221   >>    C1333231331121111331333133313331333132313223313231331121331122   <<    C13332313311211113313331333133313331323132233132313311213311223   >>      C13332313311211113313331333133313331323132233132313311213311222   >>