using System;

​

public class Program

{

    public static void Main()

    {

        Bar(T => T.Foo()); // Prints "T"

        Bar(S => S.Foo()); // Prints "S"

    }

    static void Bar(Action<T> x) { Console.WriteLine("T"); }

    static void Bar(Action<S> x) { Console.WriteLine("S"); }

}

​

class T

{

    public static void Foo() { }

}

​

class S

{

    public static void Foo() { }

}