Challenge 2: Implement an Interface

Problem Statement

You are given an interface, IAddition, which contains a method signature int AddTwo(int num1, int num2). You need to write a class called Calculator which implements the IAddition interface.

The AddTwo(int num1, int num2) method takes two integers and returns their sum.

Input

Calling the AddTwo(int num1, int num2) method by passing num1 and num2.

Output

Returns the addition of num1 and num2.

Sample Input

Calculator cal = new Calculator();
cal.AddTwo(10, 20);

Sample Output

30