#include "bits/stdc++.h"
using namespace std;
#ifdef LOCAL
#include "algo/debug"
#else
#define dbg(...)
#endif
#define int long long
void run() {
int n, m;
cin >> n >> m;
int a[n], b[m];
for (int &i : a) {
cin >> i;
}
for (int &i : b) {
cin >> i;
}
int extra[1 << m], dp[1 << m];
fill(extra, extra + (1 << m), -1);
fill(dp, dp + (1 << m), -1);
dp[0] = extra[0] = 0;
for (int msk = 0; msk < 1 << m; msk++) {
for (int i = 0; i < m; i++) {
if (!(msk >> i & 1)) {
continue;
}
int prev = 1 << i ^ msk;
if (dp[prev] == -1) {
continue;
}
if (extra[prev] + b[i] < a[dp[prev]]) {
extra[msk] = extra[prev] + b[i];
dp[msk] = dp[prev];
} else if (extra[prev] + b[i] == a[dp[prev]]) {
extra[msk] = 0;
dp[msk] = dp[prev] + 1;
}
}
if (dp[msk] == n) {
cout << "YES\n";
return;
}
}
cout << "NO\n";
}
signed main() {
ios::sync_with_stdio(0);
cin.tie(nullptr);
int tt = 1;
// cin >> tt;
while (tt--) {
run();
}
}
