static void Main()
        {
            string[] tokens = Console.ReadLine().Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
                //Console.ReadLine().Split(' ');


            int i;
            double r;


           for (i = tokens.Length - 1; i > -1; i--)
          {
               r = Math.Round(Math.Sqrt(int.Parse(tokens[i])), 5);

                Console.WriteLine("{0:F4}",r);
           }

        }