using System;

public class Program

{

    public static void Main()

    {

        var foo = new Foo<string, string>();

        Console.WriteLine(Foo<string,string>.Bar("ok"));

        var foo2 = new Foo<string, int>();

        Console.WriteLine(Foo<string,int>.Bar(2));

    }

}

class Foo<T,U> { public static string Bar(T t) { return "bar T"; }  public static string Bar(U u) { return "bar U"; } }