C312312111133131121333133313113313331333133313331333133313331333133313123223121   >>    C31231211113313112133313331311331333133313331333133313331333133313331312322312   <<    C312312111133131121333133313113313331333133313331333133313331333133313123223123   >>      C312312111133131121333133313113313331333133313331333133313331333133313123223122   >>