C13112133313331323321333133313331333133313331333133313331312322321313231   >>    C1311213331333132332133313331333133313331333133313331333131232232131323   <<    C13112133313331323321333133313331333133313331333133313331312322321313233   >>      C13112133313331323321333133313331333133313331333133313331312322321313232   >>