#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
vector<int> a(n), b(m);
for (int &x : a) cin >> x;
for (int &x : b) cin >> x;
int sumA = accumulate(a.begin(), a.end(), 0);
int sumB = accumulate(b.begin(), b.end(), 0);
if (sumA != sumB) {
cout << "NO\n";
return 0;
}
int N = 1 << m;
vector<int> sum(N, 0);
for (int mask = 1; mask < N; mask++) {
int lb = mask & -mask;
int bit = __builtin_ctz(lb);
sum[mask] = sum[mask ^ lb] + b[bit];
}
vector<vector<int>> subs(sumA + 1);
for (int mask = 0; mask < N; mask++) {
if (sum[mask] <= sumA) subs[sum[mask]].push_back(mask);
}
vector<char> dp(N, 0);
dp[0] = 1;
for (int x : a) {
vector<char> ndp(N, 0);
for (int mask = 0; mask < N; mask++) if (dp[mask]) {
int rem = (~mask) & (N - 1);
for (int sub : subs[x]) {
if ((sub & mask) == 0) ndp[mask | sub] = 1;
}
}
dp.swap(ndp);
}
cout << (dp[N - 1] ? "YES\n" : "NO\n");
}
