C131121333133313233213331333133313331312111133133313331333133313331311233312311   >>    C13112133313331323321333133313331333131211113313331333133313331333131123331231   <<    C131121333133313233213331333133313331312111133133313331333133313331311233312313   >>      C131121333133313233213331333133313331312111133133313331333133313331311233312312   >>