#include <bits/stdc++.h>
using ll = int64_t;
using namespace std;
constexpr int maxn = 1E5 + 1;
void orz() {
int N, M;
cin >> N >> M;
vector <int> A(N + 1), B(M + 1);
for(int i = 1; i <= N; i++) {
cin >> A[i];
}
for(int i = 1; i <= M; i++) {
cin >> B[i];
}
int X = A[1];
vector <bool> dp(X + 1, 0);
dp[0] = 1;
for(int i = 1; i <= M; ++i) {
for(int j = X; j >= B[i]; j--) {
dp[j] = (dp[j] || dp[j - B[i]]);
}
}
if(dp[X]) {
cout << "YES";
}
else cout << "NO";
}
int32_t main() {
ios_base::sync_with_stdio(false), cin.tie(nullptr);
//freopen("promote.in", "r", stdin);
//freopen("promote.out", "w", stdout);
int T = 1;
//cin >> T;
while(T--) orz();
return 0;
}
