C11112331312111112111133133313331333133313331333133313331333132322112333121   >>    C1111233131211111211113313331333133313331333133313331333133313232211233312   <<    C11112331312111112111133133313331333133313331333133313331333132322112333123   >>      C11112331312111112111133133313331333133313331333133313331333132322112333122   >>