C11112331312111112111133133313331333132323213331333133313331312312131221   >>    C1111233131211111211113313331333133313232321333133313331333131231213122   <<    C11112331312111112111133133313331333132323213331333133313331312312131223   >>      C11112331312111112111133133313331333132323213331333133313331312312131222   >>