using System;

public class Program

{

    public float answer = 0;

​

    public static void Main()

    {

        Console.WriteLine("Jeff Tse:Hello!");

        Console.WriteLine("AI:Hello!");

        Console.WriteLine("Jeff Tse:How are you?");

        Console.WriteLine("AI:I'm fine, and you?");

        Console.WriteLine("Jeff Tse:Not bad");

        Console.WriteLine("1+1=?");

    }

}