import java.util.*;
import java.io.*;
public class bank {
public static void main(String[] args) throws IOException {
Reader in = new Reader();
PrintWriter out = new PrintWriter(System.out);
int N = in.nextInt(), M = in.nextInt();
int[] arr = new int[N], val = new int[M];
for (int i = 0; i < N; i++) {
arr[i] = in.nextInt();
}
for (int i = 0; i < M; i++) {
val[i] = in.nextInt();
}
boolean[] dp = new boolean[1 << M];
dp[0] = true;
int[] pos = new int[1 << M], amt = new int[1 << M];
boolean res = false;
for (int i = 1; i < 1 << M; i++) {
for (int j = 0; j < M; j++) {
if ((i & 1 << j) > 0) {
if (dp[i ^ 1 << j]) {
if (pos[i ^ 1 << j] < N && amt[i ^ 1 << j] + val[j] <= arr[pos[i ^ 1 << j]]) {
dp[i] = true;
pos[i] = pos[i ^ 1 << j];
amt[i] = amt[i ^ 1 << j] + val[j];
if (amt[i] == arr[pos[i]]) {
pos[i]++;
amt[i] = 0;
}
}
}
}
}
if (dp[i] && pos[i] == N) {
res = true;
}
}
out.println(res ? "YES" : "NO");
out.close();
}
static class Reader {
BufferedInputStream in;
public Reader() {
in = new BufferedInputStream(System.in);
}
public String nextLine() throws IOException {
int c;
StringBuilder sb = new StringBuilder("");
while ((c = in.read()) != '\n')
sb.append((char)(c));
return sb.toString();
}
public String next() throws IOException {
int c;
StringBuilder sb = new StringBuilder("");
while ((c = in.read()) != ' ' && c != '\n')
sb.append((char)(c));
return sb.toString();
}
public int nextInt() throws IOException {
return (int)nextLong();
}
public long nextLong() throws IOException {
int c;
long res = 0;
boolean start = false, negative = false;
while ((c = in.read()) != ' ' && c != '\n' || !start)
if (c >= '0' && c <= '9' || c == '-') {
start = true;
if (c == '-')
negative = true;
else
res = res * 10 + c - '0';
}
return res * (negative ? -1 : 1);
}
}
public static void sort(int[] arr) {
List<Integer> list = new ArrayList<>();
for (int i : arr) {
list.add(i);
}
Collections.sort(list);
for (int i = 0; i < arr.length; i++) {
arr[i] = list.get(i);
}
}
}
