C13112133313331323321333133313331333133313331333133313331312322321111331312111   >>    C1311213331333132332133313331333133313331333133313331333131232232111133131211   <<    C13112133313331323321333133313331333133313331333133313331312322321111331312113   >>      C13112133313331323321333133313331333133313331333133313331312322321111331312112   >>