C111112111133131121133133313331333121111133313331333133311332233132322233321   >>    C11111211113313112113313331333133312111113331333133313331133223313232223332   <<    C111112111133131121133133313331333121111133313331333133311332233132322233323   >>      C111112111133131121133133313331333121111133313331333133311332233132322233322   >>