C11112331312111112111133133313331333133112111113331333133313223313112113121   >>    C1111233131211111211113313331333133313311211111333133313331322331311211312   <<    C11112331312111112111133133313331333133112111113331333133313223313112113123   >>      C11112331312111112111133133313331333133112111113331333133313223313112113122   >>