import java.io.*;
import java.util.*;
public class bank {
public static void main(String[] args) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer(in.readLine());
int people = Integer.parseInt(st.nextToken());
int banknotes = Integer.parseInt(st.nextToken());
int[] plist = new int[people];
int[] blist = new int[banknotes];
st = new StringTokenizer(in.readLine());
for(int i = 0; i < people; i++) {
plist[i] = Integer.parseInt(st.nextToken());
}
st = new StringTokenizer(in.readLine());
for(int i = 0; i < banknotes; i++) {
blist[i] = Integer.parseInt(st.nextToken());
}
int[][] dp = new int[1 << banknotes][2];
for(int i = 0; i < (1 << banknotes); i++) {
for(int j = 0; j < banknotes; j++) {
if((i & (1 << j)) != 0) continue;
if(dp[i][0] == people) continue;
int p = dp[i][0];
int b = dp[i][1];
if(b + blist[j] < plist[p]) {
b += blist[j];
}
else if(b + blist[j] == plist[p]) {
p++;
b = 0;
}
if(p > dp[i ^ (1 << j)][0]) {
dp[i^ (1 << j)][0] = p;
dp[i^ (1 << j)][1] = b;
}
else if(p == dp[i ^ (1 << j)][0] && b > dp[i ^ (1 << j)][1]) {
dp[i ^ (1 << j)][1] = b;
}
}
}
for(int i = 0; i < (1 << banknotes); i++) {
if(dp[i][0] == people - 1 && dp[i][1] == blist[banknotes - 1]) {
System.out.println("YES");
return;
}
if(dp[i][0] == people) {
System.out.println("YES");
return;
}
}
System.out.println("NO");
}
}
