/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static class A {};
	public static class B {};
	
	public static void main (String[] args) throws java.lang.Exception
	{
		Random r = new Random();
		
		System.out.println((r.nextBoolean()) ? new A() : new B());
	}
}