C312312111133131121333133313113313331333133313331331121111331333112132321   >>    C31231211113313112133313331311331333133313331333133112111133133311213232   <<    C312312111133131121333133313113313331333133313331331121111331333112132323   >>      C312312111133131121333133313113313331333133313331331121111331333112132322   >>