Print N number of Fibonacci series

 class Program
    {
        static void Main(string[] args)
        {
            int N,a=-1,b=1,c;
            Console.WriteLine("Enter the Number of Series to print");
            N = Convert.ToInt16(Console.ReadLine());

            for(int i=1; i<= N; i++)
            {
                c = a + b;
                Console.Write(" " + c);
                a = b;
                b = c;
            }

            Console.ReadLine();
        }
    }