C11112331312111112111133133313331333133313331333133313331211113313222322221   >>    C1111233131211111211113313331333133313331333133313331333121111331322232222   <<    C11112331312111112111133133313331333133313331333133313331211113313222322223   >>      C11112331312111112111133133313331333133313331333133313331211113313222322222   >>