C11112331312111112111133133313331333132323213331333121121133121   >>    C1111233131211111211113313331333133313232321333133312112113312   <<    C11112331312111112111133133313331333132323213331333121121133123   >>      C11112331312111112111133133313331333132323213331333121121133122   >>