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 {

interface CompressionRegime_AnyType<A> {
  byte[] decompressorToBytes(A decompressor);
  A decompressorFromBytes(byte[] compressed);
  
  // return type O to make regime reusable e.g. for elements of lists
  Object runDecompressor(A a);
  
  // e.g. full eval check
  CompressionRegime_AnyType<A> fullRegime();
}}