C312312111133131121333133313113313331333133313331333133313331333133313332211231   >>    C31231211113313112133313331311331333133313331333133313331333133313331333221123   <<    C312312111133131121333133313113313331333133313331333133313331333133313332211233   >>      C312312111133131121333133313113313331333133313331333133313331333133313332211232   >>