C13112133313331323321333133313331333133313331333133313331312111133131232333131   >>    C1311213331333132332133313331333133313331333133313331333131211113313123233313   <<    C13112133313331323321333133313331333133313331333133313331312111133131232333133   >>      C13112133313331323321333133313331333133313331333133313331312111133131232333132   >>