C3123121111113313121111331333133313311211113313331333112232233133313232331231   >>    C312312111111331312111133133313331331121111331333133311223223313331323233123   <<    C3123121111113313121111331333133313311211113313331333112232233133313232331233   >>      C3123121111113313121111331333133313311211113313331333112232233133313232331232   >>