C13332313311211113313331333133313331323132233133313331323113313331323222121   >>    C1333231331121111331333133313331333132313223313331333132311331333132322212   <<    C13332313311211113313331333133313331323132233133313331323113313331323222123   >>      C13332313311211113313331333133313331323132233133313331323113313331323222122   >>