using System;

public class Program

{

    public static void Main()

    {

        int a , b;

        a=-6;

        b=4;

        Console.WriteLine("Math.Abs("+a+")="+ Math.Abs(a));

        Console.WriteLine("Math.Abs("+b+")="+ Math.Abs(b));

        Console.WriteLine(Math.Abs(a+b));

        Console.WriteLine("Math.Pow("+a+",2)="+ Math.Pow(a,2));

        Console.WriteLine(Math.Pow(b,10));

        Console.ReadLine();

    }

}