C131121333133313233213331333133313331333133313331333133313331333131213331211   >>    C13112133313331323321333133313331333133313331333133313331333133313121333121   <<    C131121333133313233213331333133313331333133313331333133313331333131213331213   >>      C131121333133313233213331333133313331333133313331333133313331333131213331212   >>