Fibonacci Series in C#

using System;  

  public class FibonacciExample  

   {  

     public static void Main(string[] args)  

      {  

         int n1=0,n2=1,n3,i,number;    

         Console.Write("Enter the number of elements: ");    

         number = int.Parse(Console.ReadLine());  

         Console.Write(n1+" "+n2+" "); //printing 0 and 1    

         for(i=2;i<number;++i) //loop starts from 2 because 0 and 1 are already printed    

         {    

          n3=n1+n2;    

          Console.Write(n3+" ");    

          n1=n2;    

          n2=n3;    

         }    

      }  

   }