using System;

public class Program

{

    public static void Main()

    {

        int i,f1,f2,f3,n;

        f1 = 0;

        f2 = 1;

        Console.WriteLine("fibonacci series");

        Console.WriteLine("enter the number of series");

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

        for(i = 1; i<n; i++)

        {

            f3 = f1 + f2;

            f1 = f2;

            f2 = f3;

            Console.WriteLine(f3);

        }

    }

}