#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) (x).begin(), (x).end()
#define F first
#define S second
#define nn '\n'
#define pb push_back
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
vector<int> a(n), b(m);
for (int i = 0; i < n; ++i) cin >> a[i];
for (int i = 0; i < m; ++i) cin >> b[i];
int cnt = a[0];
vector<bool> dp(cnt + 1, false);
dp[0] = true;
for (int i = 0; i < m; ++i) {
for (int j = cnt; j >= b[i]; --j) {
if (dp[j - b[i]]) dp[j] = true;
}
}
cout << (dp[cnt] ? "YES" : "NO") << nn;
}
