using System;

public class Program

{

    private static double THR (int age, int rhr)

    {

        return rhr - age;

    }

    public static void Main()

    {

        Console.WriteLine("Enter Age:");

        int age, Maxhr, Restinghr;

        age = Convert.ToInt32(Console.ReadLine());

        Console.Write("Resting HeartRate is: ");

        Restinghr = Convert.ToInt32(Console.ReadLine());

        Maxhr = 220 - age;

        Console.WriteLine("Maximum HeartRate is: "+Maxhr);

        decimal percent = Convert.ToInt32(Console.ReadLine());

        decimal math = percent / 60;

        decimal result = Maxhr * math;

        Console.WriteLine("Target HeartRate: "+result);

    }

}