C11112331312111112111133133313331333133313331333133313331333133313221133121   >>    C1111233131211111211113313331333133313331333133313331333133313331322113312   <<    C11112331312111112111133133313331333133313331333133313331333133313221133123   >>      C11112331312111112111133133313331333133313331333133313331333133313221133122   >>