C13112133313331323321333133313331333133313331333133313331333133311222221231   >>    C1311213331333132332133313331333133313331333133313331333133313331122222123   <<    C13112133313331323321333133313331333133313331333133313331333133311222221233   >>      C13112133313331323321333133313331333133313331333133313331333133311222221232   >>