C312312111111331312111133133313331333121111121111331333133313331333132233112131   >>    C31231211111133131211113313331333133312111112111133133313331333133313223311213   <<    C312312111111331312111133133313331333121111121111331333133313331333132233112133   >>      C312312111111331312111133133313331333121111121111331333133313331333132233112132   >>