Console Input/Output - Task 10

using System;

namespace ConsoleInputOutput
{
    public static class Fibonachi
    {
        public static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            ulong first = 0;
            ulong second = 1;
            Console.WriteLine(first);
            Console.WriteLine(second);
            ulong third = ulong.MinValue;
            for (int i = 2; i < n; i++)
            {
                third = first + second;
                Console.WriteLine(third);
                first = second;
                second = third;
            }
        }
    }
}