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 <A> boolean containsExceptionOfType(Class<A> c, Throwable e) {
  return containsException(c, e);
}

static <A> boolean containsExceptionOfType(Throwable e, Class<A> c) {
  return containsExceptionOfType(c, e);
}
static boolean containsException(Class<A> c, Throwable e) {
  return unpackExceptionAs(c, e) != null;
}




static <A> A unpackExceptionAs(Class<A> c, Throwable e) {
  return unpackExceptionAs(c, e);
}



}