שאלה 20

        static void Main(string[] args)
        {
            int[] a = new int[10];
            int[] b = new int[a.Length];
            int[] c = new int[a.Length];
            int i, j, Placement = 0, x, f, y, car, bar, aar;
            for (i = 0; i < a.Length; i++)
            {
                a[i] = int.Parse(Console.ReadLine());
            }
            for (j = 0; j < a.Length; j++)
            {
                if (a[j] < 0)
                {
                    b[Placement] = a[j];
                    Placement++;
                }
            }
            for (x = 0; x < a.Length; x++)
            {
                if (a[x] > 0)
                {
                    b[Placement] = a[x];
                    Placement++;
                }
            }
            for (f = 0; f < a.Length; f++)
                Console.Write(b[f] + " ");
            for (y = 0; y < a.Length; y++)
            {
                if (a[y] > b[y])
                {
                    c[y] = a[y];
                }
                else if (b[y] > a[y])
                {
                    c[y] = b[y];
                }
                else
                {
                    c[y] = 0;
                }
            }
            Console.WriteLine("");
            for (car = 0; car < a.Length; car++)
                Console.Write(a[car] + " ");
            Console.WriteLine("");
            for (bar = 0; bar < a.Length; bar++)
                Console.Write(b[bar] + " ");
            Console.WriteLine("");
            for (aar = 0; aar < a.Length; aar++)
                Console.Write(c[aar] + " ");

        }