C11112331312111112111133133313331333133313331333133313331333112113111121   >>    C1111233131211111211113313331333133313331333133313331333133311211311112   <<    C11112331312111112111133133313331333133313331333133313331333112113111123   >>      C11112331312111112111133133313331333133313331333133313331333112113111122   >>