xianlaioy

import java.io.*;
import java.util.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.tools.*;

public class DumpClassURL extends Tool {
    public void run() {

xianlaioy

import java.util.*;

public class Fib {
  static int o = 0;

  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int n = in.nextInt();
    long start = System.currentTimeMillis();
    int answer = fib(n);