using System;
public class XYZ
{
	public static void printf(params char[] args)
	{
		if(args==null)
		{
			Console.WriteLine("It worked");
		}
	}
	public static void oprintf(params Object[] args)
	{
		if(args==null)
		{
			Console.WriteLine("It failed");
		}
	}
	public static void Main()
	{
		printf(null); // should pass null array
		oprintf(null); // should pass new Object[]{null} ?
	}
}