C111113331333132322331333133313331333133313121111331333121111121111133313232111   >>    C11111333133313232233133313331333133313331312111133133312111112111113331323211   <<    C111113331333132322331333133313331333133313121111331333121111121111133313232113   >>      C111113331333132322331333133313331333133313121111331333121111121111133313232112   >>