using System;

public class Program

{

    public static void Main()

    {

        // This overflows as expected.

        Console.WriteLine(Add(Int32.MaxValue, 5));

        // This throws a System.OverflowException

        Console.WriteLine(Divide(Int32.MinValue, -1));

    }

    private static int Add(int a, int b)

    {

        return unchecked(a + b);

    }

    private static int Divide(int n, int d)

    {

        return unchecked (n / d);

    }

}