C1111133313331323223313331333133313331333231333121111331312133231   >>    C111113331333132322331333133313331333133323133312111133131213323   <<    C1111133313331323223313331333133313331333231333121111331312133233   >>      C1111133313331323223313331333133313331333231333121111331312133232   >>