C13112133313331323321333133313331333133313333121111331333132233131211211   >>    C1311213331333132332133313331333133313331333312111133133313223313121121   <<    C13112133313331323321333133313331333133313333121111331333132233131211213   >>      C13112133313331323321333133313331333133313333121111331333132233131211212   >>