import java.util.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        int[] arr=new int[5];
        arr[0]=4;
        arr[1]=1;
        arr[2]=3;
        arr[3]=9;
        arr[4]=2;
        //int j=0;

        //merge_sort(arr,0,5);
        PriorityQueue<Integer> pq=new PriorityQueue<>(Collections.reverseOrder());
        int k=4;
        for(int i=0;i<5;i++){
            pq.add(arr[i]);
            if(pq.size()>k){
                pq.poll();
            }
        }
        System.out.println(pq.peek());
    }
}