using System;

public class Program

{

    public static void Main(string[] args)

    {

        Console.WriteLine(Calculate());

    }

            public static double Calculate()

            {

                   Console.WriteLine("Enter the dollar amount.");

                   string number1Input = Console.ReadLine();

                   Console.WriteLine("Enter the percent of the tip.");

                   string number2Input = Console.ReadLine();

                   double num1 = double.Parse(number1Input);

                   double num2 = double.Parse(number2Input);

                   double num3 = num1 * num2;

                   double num4 = 100;

                   double num5 = num3 / num4;

                   Console.WriteLine("Here is the amount of the tip.");

                   return num5;

            } 

}