C13112133313331323321333133313331333131211113313331333133311331312111   >>    C1311213331333132332133313331333133313121111331333133313331133131211   <<    C13112133313331323321333133313331333131211113313331333133311331312113   >>      C13112133313331323321333133313331333131211113313331333133311331312112   >>