using System;
 
interface Device1
{
	void start();
}
 
interface Device2
{
	void start();
}
 
public class ConcreteDevice : Device1, Device2
{
	void Device1.start()
	{
		Console.WriteLine("Device1 implementation");
	}
 
	void Device2.start()
	{
		Console.WriteLine("Device2 implementation");
	}
 
}
 
public class Test
{
	public static void Main()
	{
		Device1 d1 = new ConcreteDevice();
		Device2 d2 = new ConcreteDevice();
 
		d1.start();
		d2.start();
	}
}

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