using System;

public class Program

{

    public static void Main()

    {

        float x = 6.66F;

     float y = 4.5F;

     float a,b,c,d; ;

     int z = 9;

    double pow_z = Math.Pow(z, 3); 

        double Sqrtz = Math.Sqrt(z);

     a = x+y;

     b = x-y;

     c = x*y;

     d = x/y;

     Console.WriteLine("součet je"+a);

     Console.WriteLine("rozdíl je"+b);

     Console.WriteLine("součin je "+c);

     Console.WriteLine("podíl je "+d);

    Console.WriteLine("mocnina z je"); Console.WriteLine(pow_z);

        Console.WriteLine("odmocnina z je"); Console.WriteLine(Sqrtz);

    }

}