using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine("Enter your Firstname:");

        string firstName = Console.ReadLine();

        Console.WriteLine("Enter your Lastname:");

        string lastName = Console.ReadLine();

        Console.WriteLine("Enter your Age:");

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

        Console.WriteLine("Your name is " + firstName +" "+ lastName+ " and age is " + age);

    }

}