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();

    }

}