C312312111112111113121333133313331333133313331333211232313233313232212131211   >>    C31231211111211111312133313331333133313331333133321123231323331323221213121   <<    C312312111112111113121333133313331333133313331333211232313233313232212131213   >>      C312312111112111113121333133313331333133313331333211232313233313232212131212   >>