#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(0);
cin.tie(nullptr);
int n, m; cin >> n >> m;
vector<int> goals(n);
for (int& i : goals) cin >> i;
vector<int> b(m);
for (int& i : b) cin >> i;
vector<pair<int, int>> dp(1 << m);
for (int mask = 1; mask < (1 << m); ++mask) {
for (int i = 0; i < m; ++i) {
if (mask & (1 << i)) {
pair<int, int> st = dp[mask ^ (1 << i)];
st.second += b[i];
if (st.second > goals[st.first]) {
continue;
}
if (st.second == goals[st.first]) {
++st.first;
st.second = 0;
if (st.first == n) {
cout << "YES\n";
return 0;
}
}
dp[mask] = max(dp[mask], st);
}
}
}
cout << "NO\n";
return 0;
}
