C131121333133313233213331333133313331333133313331333133313331333131131123131   >>    C13112133313331323321333133313331333133313331333133313331333133313113112313   <<    C131121333133313233213331333133313331333133313331333133313331333131131123133   >>      C131121333133313233213331333133313331333133313331333133313331333131131123132   >>