C11112331312111112111133133313331333133313331333133313331333131131322321   >>    C1111233131211111211113313331333133313331333133313331333133313113132232   <<    C11112331312111112111133133313331333133313331333133313331333131131322323   >>      C11112331312111112111133133313331333133313331333133313331333131131322322   >>