using System;

​

class A

{

    public string getData()

    {

        return "666";

    }

}

​

class B

{

    public B getData()

    {

        return new B();

    }

​

    public static string operator +(B a, B b)

    {

        return "Bullshit hahahaha";

    }

}

​

class C

{

    public int getData()

    {

        return 666;

    }

}

​

public class Program

{

    public static void Main()

    {

        //STEP 1: just try this with A,B and C ..no Compiler Issue and three different things that happen

        var model = new A();

        //Represents a small worker which should concatenate strings

        var data = model.getData();

        Console.WriteLine(data + data);

        //versus explicit type

        //STEP 2: Comment the below lines out and repeat STEP 1...

        //string data2 = model.getData();

        //Console.WriteLine(data2 + data2);

        //Step 3: think about it the next time if you refactor something!

    }

}