#include <bits/stdc++.h>
using namespace std;
const int N = 21;
const int S = 1001;
int a[N] , b[N];
bool dp[N][1<<N];
vector<int> vec[S];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int n,m;
cin >> n >> m;
for (int i=1;i<=n;i++) cin >> a[i];
for (int i=0;i<m;i++) cin >> b[i];
dp[0][0] = true;
int k = 1<<m;
for (int i=0;i<k;i++) {
int sum = 0;
for (int j=0;j<m;j++) {
if (i&(1<<j)) sum += b[j];
}
if (sum<=1000) vec[sum].push_back(i);
}
for (int i=1;i<=n;i++) {
for (int j=0;j<k;j++) {
if (dp[i-1][j]) {
for (auto sum:vec[a[i]]) {
if (j&sum) continue;
dp[i][j|sum] = 1;
}
}
}
}
bool ans = false;
for (int i=0;i<k;i++) ans |= dp[n][i];
if (ans) cout << "YES";
else cout << "NO";
return 0;
}
