using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Ch03Ex2

{

    class Program

    {

        static void Main(string[] args)

        {

            double firstNumber, secondNumber;

            string userName;

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

            Console.ReadLine();

            userName = Console.ReadLine();

            Console.WriteLine("Welcome {0}!", userName);

            Console.ReadKey();

            // Something is broken here rofl

            Console.WriteLine ("Now give me a number:");

            firstNumber = Convert.ToDouble(Console.ReadLine());

            Console.WriteLine("Now give me another number:");

            secondNumber = Convert.ToDouble(Console.ReadLine());

            Console.WriteLine ("The sum of {0} and {1} is {2}.", firstNumber, secondNumber, firstNumber + secondNumber);

            Console.WriteLine ("The result of multiplying {0} by {1} is {2}.", firstNumber, secondNumber, firstNumber * secondNumber);

            Console.WriteLine ("Subtracting {0} from {1} gives you {2}.", firstNumber, secondNumber, firstNumber - secondNumber);

            Console.WriteLine ("If we divide {0} by {1} we get {2}.", firstNumber, secondNumber, firstNumber / secondNumber);

            Console.WriteLine("The remainder left from dividing {0} by {1} is {2}.", firstNumber, secondNumber, firstNumber % secondNumber);

            Console.WriteLine("This program is partially broken lol");

            Console.ReadKey();        

        }

    }

}

Something is causing the console to malfunction when i enter my name, what could be causing it?