Write a C# function

`csharp using System;
namespace MyNamespace { // Replace with your namespace if needed.
    class Program {  // Replace with the name of your class if not using "Program" as default entry point.
        static int Add(int num1, int num2) { // Function definition with name 'Add' and two integer arguments.
            return num1 + num2;             // Return statement that returns the sum of the numbers.
        }
    }
}

You can call this function like: `int result = Add(3, 5);`. The value of `result` will be set to the sum of integers passed as arguments (in this case: 8).