C31231211113313112133313331311331333133313331333133313331333133313331322231211   >>    C3123121111331311213331333131133133313331333133313331333133313331333132223121   <<    C31231211113313112133313331311331333133313331333133313331333133313331322231213   >>      C31231211113313112133313331311331333133313331333133313331333133313331322231212   >>