//The gravitational field of the Moon is approximately 17% of that on the Earth. Write a program that calculates the weight of a man on the moon by a given weight on the Earth.

using System;

class GravityMoon
{
    static void Main()
    {
        Console.Write("Write weight of a man on Earth: ");
        string man = Console.ReadLine();
        double weightMan = double.Parse(man);

        double wMoon = ((double) (weightMan * 17)) / 100;
        Console.WriteLine(wMoon);

    }
}