C11112331312111112111133133313331333133313331333133313331333133313221113111   >>    C1111233131211111211113313331333133313331333133313331333133313331322111311   <<    C11112331312111112111133133313331333133313331333133313331333133313221113113   >>      C11112331312111112111133133313331333133313331333133313331333133313221113112   >>