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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
double a, b, c;
Console.Write(" a=");
a = double.Parse(Console.ReadLine());
Console.Write(" b=");
b = double.Parse(Console.ReadLine());
c = Math.Sqrt(a*a + b*b);
Console.WriteLine(" c={0}", c);
Console.Write(" ... ");
Console.ReadKey(true);
}
}
}
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