C131121333133313233213331333133313331333133313223313223313331333231111   >>    C13112133313331323321333133313331333133313331322331322331333133323111   <<    C131121333133313233213331333133313331333133313223313223313331333231113   >>      C131121333133313233213331333133313331333133313223313223313331333231112   >>