using System;

public class Program

{

    public static void Main()

    {

        double x;

        double y;

        int h = 6;;

        Console.WriteLine("x    y");

        for (x = 8 ; x < 200 ; x += h)

        {

            if (x != 0)

            {

                y = 25/x;

                Console.WriteLine(x + "  " + y);

            }

            else 

            {

                y = 25;

                Console.WriteLine(x + "  " + y);

            }

        }

    }

}