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