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 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.*;
public class main {


main main;

public static void main(String[] args) throws Exception {
  main m = new main();
  m.blubb();
}

main() { main = this; }

void bla() {
}

void blubb() {
  main.bla();
  new Sub().bla();
}

class Sub {
  void bla() {
    main.bla();
  }
}
}