Fibonacci Series Using C#(CSharp)

Following program generates the Fibonacci series up to 200.

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {       
        static void Main(string[] args)
        {
            int number1, number2;
            number1 = 0;
            number2 = 1;

            Console.WriteLine("{0}", number1);
            while (number2 < 200)
            {
                Console.WriteLine("{0}", number2);
                number2 = number2 + number1;
                number1 = number2 - number1;
            }

            Console.ReadLine();

        }
    }
}

Output

Fibonacci Series