import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

/**
 * Created by suneetmahajan on 19/01/2018.
 */
public class p5
{
    public static void main(String[] args)
    {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        int p = scan.nextInt();

        int difficultyLevels;
        ArrayList<Integer> difficulties = new ArrayList<>();

        for (int i = 0; i < p; i++)
        {
            difficultyLevels = scan.nextInt();

            difficulties.add(difficultyLevels);

        }

        int c = scan.nextInt();

        int abilities;

        ArrayList<Integer> abilitiesList = new ArrayList<>();

        for (int index = 0; index < c; index++)
        {
            abilities = scan.nextInt();

            abilitiesList.add(abilities);
        }

        scan.close();

        Collections.sort(difficulties);

        String answer = "no";

        for (int pp = 0; pp < p; pp++)
        {
            int numberOfPeopleWhoSolved = 0;

            int currentProblemDifficulty = difficulties.get(pp);

            for (int yy = 0; yy < c; yy++)
            {

                if ((abilitiesList.get(yy)) >= currentProblemDifficulty)
                {
                    numberOfPeopleWhoSolved++;
                }

            }

            if (numberOfPeopleWhoSolved == n)
            {
                answer = "yes";
                pp = p;
            }

            else if (numberOfPeopleWhoSolved < n)
            {
                pp = p;
            }

        }

        System.out.println(answer);
    }
}