C111123313121111121111331333133313331312111113331333133313221111   >>    C11112331312111112111133133313331333131211111333133313331322111   <<    C111123313121111121111331333133313331312111113331333133313221113   >>      C111123313121111121111331333133313331312111113331333133313221112   >>