C312312111111331312111133133313331333133313231323133313331333133313223331211311   >>    C31231211111133131211113313331333133313331323132313331333133313331322333121131   <<    C312312111111331312111133133313331333133313231323133313331333133313223331211313   >>      C312312111111331312111133133313331333133313231323133313331333133313223331211312   >>