C13112133313331323321333133313331333133313331333133313331312322321111332123311   >>    C1311213331333132332133313331333133313331333133313331333131232232111133212331   <<    C13112133313331323321333133313331333133313331333133313331312322321111332123313   >>      C13112133313331323321333133313331333133313331333133313331312322321111332123312   >>