using System;

public class Exercise6

{

    public static void Main()

    {

        int x, y;

        Console.WriteLine("x = y² - 2y +1");

        Console.WriteLine();

        for (y=-5; y <= 5; y++)

        {

            x = y*y - 2*y + 1;

            Console.WriteLine(

                "y = {0} ; x=({0})² - 2*({0}) +1 = {1}",

                y, x);

        }

        Console.WriteLine("\nBy Erick de la Rosa");

    }

}