C312312111133131121333133313113313331333133313331333133313331333133313223131121   >>    C31231211113313112133313331311331333133313331333133313331333133313331322313112   <<    C312312111133131121333133313113313331333133313331333133313331333133313223131123   >>      C312312111133131121333133313113313331333133313331333133313331333133313223131122   >>