int[] numbers = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();

            for (int i = 0; i < numbers.Length; i++)
            {
                if (numbers[i] < 0)
                {
                    Console.Write(numbers[i] + " ");
                }
            }

            for (int i = 0; i < numbers.Length; i++)
            {
                if (numbers[i] > 0)
                {
                    Console.Write(numbers[i] + " ");
                }
            }