C312312111133131121333133313113313331333133313331333133313331333133313123132131   >>    C31231211113313112133313331311331333133313331333133313331333133313331312313213   <<    C312312111133131121333133313113313331333133313331333133313331333133313123132133   >>      C312312111133131121333133313113313331333133313331333133313331333133313123132132   >>