import java.util.*;
import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.locks.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;
class main {

static interface IManagedObjectCollector {
  // notify collector that there is an object in a location
  public void noteObject(int start, int size);
  
  // same plus callback after compaction
  public void noteObject(int start, int size, IVF1<Integer> updateAddress);
  
  // notify collector that there is a pointer in a location
  public void notePointer(int addr);
  
  // notify collector that there is a pointer array in a location
  public void notePointerArray(int start);
  
  // notify collector that there is an int array in a location
  public void noteIntArray(int start);
  
  void noteString(int addr, IVF1<Integer> updateAddress);
  //default void noteString(int addr) { noteString(addr, null); }
  
  // call after collectAndCompact to get new location of objects
  int getNewLocation(int addr);
}
static interface IVF1<A> {
  void get(A a);
}
}