C13112133313331323321333133313331333133313331333133313331312322321111331322311   >>    C1311213331333132332133313331333133313331333133313331333131232232111133132231   <<    C13112133313331323321333133313331333133313331333133313331312322321111331322313   >>      C13112133313331323321333133313331333133313331333133313331312322321111331322312   >>