int count = 0;
            int[] a = new int[15];

            for(int i=0; i<14; i++)
            {
                Console.WriteLine("enter numbers");
                a[i] = int.Parse(Console.ReadLine());
            }
            for (int i = 1; i <= 14; i++)
            {
                if(a[0] != a[i])
                count++;
            }
            if(count ==0)
                Console.WriteLine("all the num's are equal");