using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("What is your age?");

        double age = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Welcome! Beer for $5! Please pay up.");

        double cash = Convert.ToDouble(Console.ReadLine());

        if (cash >= 5 && age >= 18) // && signs mean 'and', to link 2 conditions together. Likewise, || means 'or' - only one condition has to be met in order for the code to be run

        {

            double change = cash - 5;

            Console.WriteLine("Here is your drink! As well as your " + change + " dollar change.");

        }

        else

        {

            Console.WriteLine("You cannot buy a drink.");

        }

    }

}