I´m learning C # basic concepts and a question has come up after doing this exercise:

using System;

namespace exercise
{
class MainClass
{
public static void Main (string[] args)
{

console.WriteLine("Type your name");
String name = Console.ReadLine ();

console.WriteLine("Type one city");
String city = Console.ReadLine ();

console.WriteLine("Hello"+ name + "wellcome to " + city )
Console.ReadLine ();

}
}
}

Question: its necessary to put the last
Console.ReadLine ();?Why?