C312312111112111113121333133313331333133313331333211232313233313223322131211   >>    C31231211111211111312133313331333133313331333133321123231323331322332213121   <<    C312312111112111113121333133313331333133313331333211232313233313223322131213   >>      C312312111112111113121333133313331333133313331333211232313233313223322131212   >>