C312312111133131121333133313113313331333133313331331121111133313223131   >>    C31231211113313112133313331311331333133313331333133112111113331322313   <<    C312312111133131121333133313113313331333133313331331121111133313223133   >>      C312312111133131121333133313113313331333133313331331121111133313223132   >>