C13112133313331323321333133313331333133313331333133313331312322321223331   >>    C1311213331333132332133313331333133313331333133313331333131232232122333   <<    C13112133313331323321333133313331333133313331333133313331312322321223333   >>      C13112133313331323321333133313331333133313331333133313331312322321223332   >>