using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;

namespace UralACM
{
    class Program
    {
        static void Main(String[] args)
        {
            Problems.ReverseRoot_1001();
        }
    }

    class Problems
    {
        public static void ReverseRoot_1001()
        {
            for (String input = Console.ReadLine(); input != null; input = Console.ReadLine())
            {
                if (input == String.Empty) continue;
                String[] numArray = input.Split(new String[] { " ", "\t" }, StringSplitOptions.RemoveEmptyEntries);
                for (int i = numArray.Length - 1; i >= 0; --i)
                {
                    Console.WriteLine("{0:F4}", Math.Sqrt(Double.Parse(numArray[i])));
                }
            }
        }
    }
}