using System;

public class Program

{

    public static void Main()

    {

        int firstN = 0, secondN = 1, thirdN = 0;

​

            Console.Write("Enter N: ");

            int length = Int32.Parse(Console.ReadLine());

​

            Console.Write("0, 1,");

​

            for(int i = 2; i < length; i++)

            {

                thirdN = firstN + secondN;

                Console.Write(" {0},", thirdN);

                firstN = secondN;

                secondN = thirdN;

            }

    }

}