import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Scanner;
import static java.lang.System.*;
import java.io.*;

public class hoofball {

	public static void main(String[] args)throws IOException{

		Scanner scan = new Scanner(new File("hoofball.dat"));
		scan.nextLine();
		String[] placeHolder = scan.nextLine().split(" ");
		ArrayList<Integer> list = new ArrayList<Integer>();
		ArrayList<Boolean> list2 = new ArrayList<Boolean>();
		for(String x: placeHolder)
			list.add(Integer.parseInt(x));
		Collections.sort(list);
		for(int x: list)
			list2.add(false);




	}

	public int left(ArrayList<Integer> list, ArrayList<Integer> list2){




	}

	public int right(ArrayList<Integer> list, ArrayList<Integer> list2){

		int count = 1;

		for(int x=list.size()-1; x>=0; x--){
			int temp1 = list.get(x);
			int temp2 = list.get(x-1);
			int temp3 = list.get(x-2);




		}


	}

	public static boolean done(ArrayList<Boolean> list2)
	{
		for(boolean x: list2)
			if(x == false)
				return false;
		return true;


	}

}