#include "bits/stdc++.h"
using namespace std;
#define ll long long
const int MOD = 1e9+7;
const int INF = 1e9;
const int N = 20;
array<int, 2> dp[1 << N]; // {no. paid people, leftover}
void solve() {
int n, m;
cin >> n >> m;
vector<int> a(n), b(m);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
for (int i = 0; i < m; i++) {
cin >> b[i];
}
dp[0] = {0, 0};
for (int mk = 1; mk < (1 << m); mk++) {
dp[mk] = {0, -1};
for (int i = 0; i < m; i++) {
if (((mk >> i) & 1) == 0) continue;
int prev = mk ^ (1 << i);
if (dp[prev][1] == -1) continue;
auto [ppl, rem] = dp[prev];
int cur = rem + b[i];
if (cur < a[ppl]) {
dp[mk] = {ppl, cur};
} else if (cur == a[ppl]) {
dp[mk] = {ppl + 1, 0};
}
}
if (dp[mk][0] == n) {
cout << "YES\n";
return;
}
}
cout << "NO\n";
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
// freopen("input.in", "r", stdin);
// freopen("output.out", "w", stdout);
// int T = 1;
// cin >> T;
// while (T--) {
solve();
// }
return 0;
}
