C312312111133131121333133313113313331333133313331331121111133313221121   >>    C31231211113313112133313331311331333133313331333133112111113331322112   <<    C312312111133131121333133313113313331333133313331331121111133313221123   >>      C312312111133131121333133313113313331333133313331331121111133313221122   >>