/* 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 void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		BaseClass a = new ChildClass();
	}
}

class BaseClass
{
	public BaseClass()
	{
		System.out.print("Base");
	}
}

class ChildClass extends BaseClass
{
	public ChildClass()
	{
		System.out.print("Child");
	}
}