using System;

public class Program

{

    public static void Main()

    {

        for (double y = -100; y <= 100; y = y + 1)

            {

                y = Math.Round(y, 1);

                for (double x = -100; x <= 100; x = x + 1)

                {

                    x = Math.Round(x, 1);

                    for (double z = -100; z <= 100; z = z + 1)

                    {

                        z = Math.Round(z, 1);

                        if ((y == (x + 1)) & (x == ((2 * z) + 22)) & (x + y + z == 80))

                        {           

                            Console.WriteLine("solución es : x = {0}, y = {1}, z = {2}.", x, y, z);

                            break;

                        }

                    }

                }

            }

    }

}