import java.util.*;

public class Solution {
    Map<String, Integer> magazineMap;
    Map<String, Integer> noteMap;

    public Solution(String magazine, String note) {
        String[] splitedMagazine = getArrayFromString(magazine);
        magazineMap = new HashMap<String, Integer>();
        fillMap(splitedMagazine, magazineMap);

        String[] splitedNote = getArrayFromString(note);
        noteMap = new HashMap<String, Integer>();
        fillMap(splitedNote, noteMap);
    }

    public String[] getArrayFromString(String str) {
        return str.split("\\s+");
    }

    public void fillMap(String[] arr, Map<String, Integer> map) {
        for(int i=0; i<arr.length;i++) {
            Integer num = map.get(arr[i]);
            if(num == null)
                num = 0;
            map.put(arr[i],++num);
        }
    }

    public boolean solve() {
        for(String key : noteMap.keySet()) {
            Integer noteNum = noteMap.get(key);
            Integer magazineNum = magazineMap.get(key);
            if(magazineNum == null || magazineNum != noteNum)
                return false;
        }
        return true;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int m = scanner.nextInt();
        int n = scanner.nextInt();

        // Eat whitespace to beginning of next line
        scanner.nextLine();

        Solution s = new Solution(scanner.nextLine(), scanner.nextLine());
        scanner.close();

        boolean answer = s.solve();
        if(answer)
            System.out.println("Yes");
        else System.out.println("No");

    }
}