C11112331312111112111133133313331333133313331333133313331333131122323111   >>    C1111233131211111211113313331333133313331333133313331333133313112232311   <<    C11112331312111112111133133313331333133313331333133313331333131122323113   >>      C11112331312111112111133133313331333133313331333133313331333131122323112   >>