C312312111112111113121333133313331333133313331333211232313233313223313133311321   >>    C31231211111211111312133313331333133313331333133321123231323331322331313331132   <<    C312312111112111113121333133313331333133313331333211232313233313223313133311323   >>      C312312111112111113121333133313331333133313331333211232313233313223313133311322   >>