using System;

public class Test
{

    class OOP { }
    class CPP : OOP { }
    class JAVA : OOP { }
    class CS : OOP { }

    static void pituh(CPP x, CPP y){
        Console.WriteLine("C++ sosnooley");
    }

    static void pituh(CPP x, JAVA y){
        Console.WriteLine("C++ vs JAVA");
    }
    
    static void pituh(CS x, CS y){
        Console.WriteLine("C# has multimethods");
    }
    
    static void pituh(OOP x, OOP y){
        Console.WriteLine("default");
    }
    


    static void d(OOP x, OOP y)
    {
        dynamic a = x;
        dynamic b = y;
        pituh(a, b);
    }

    public static void Main(string[] args)
    {
		d(new JAVA(),new CS());
		d(new CPP(),new JAVA());
		d(new CPP(),new CPP());
		d(new CS(),new CPP());				
		d(new CS(),new CS());		
    }	
}