#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(), x.end()
#define siz(x) int(x.size())
#define ll long long
#define ar array
#define vt vector
#define inf INT_MAX
#define lnf LLONG_MAX
const int nxm = int(2e5) + 7;
int n, m, a[25], b[25];
namespace sub1 {
void exe() {
bool ok = false;
function<void(int, int)> work = [&](int idx, int v) {
if (idx == m) {
ok = (v == a[0] ? true : ok);
return;
}
work(idx + 1, v + b[idx]);
work(idx + 1, v);
};
work(0, 0);
cout << (ok ? "YES" : "NO") << "\n";
}
};
namespace sub2 {
void exe() {
vt<int> p(m);
iota(all(p), 0);
bool ok = false;
do {
int cnt = 0, sum = 0;
for (int i = 0; i < m; ++i) {
sum += b[p[i]];
if (sum == a[cnt]) {
++cnt;
sum = 0;
}
if (cnt >= n) {
break;
}
}
if (cnt == n) {
ok = true;
}
} while (next_permutation(all(p)));
cout << (ok ? "YES" : "NO") << "\n";
}
};
int subtask() {
if (n == 1) {
return 1;
} else if (n <= 10) {
return 2;
} else if (n <= 20 && m <= 14) {
return 3;
}
return 4;
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for (int i = 0; i < n; ++i) {
cin >> a[i];
}
for (int i = 0; i < m; ++i) {
cin >> b[i];
}
if (subtask() == 1) {
sub1::exe();
} else if (subtask() == 2) {
sub2::exe();
}
return 0;
}
