using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Skriv et tal");

        string talInput = Console.ReadLine();

        Console.WriteLine("Skriv procenten");

        string procentInput = Console.ReadLine();

        try

        {

            double tal = Convert.ToDouble(talInput);

            double procent = Convert.ToDouble(procentInput);

            double sum = (procent/100)*tal;

            Console.WriteLine("Resultat: " + sum);

        }

        catch

        {

            Console.WriteLine("Skriv venligst et gyldigt tal");

        }

    }

}