#include <bits/stdc++.h>
using namespace std;
#define int long long
#define run ios_base::sync_with_stdio(0);cin.tie(0);
#define F first
#define S second
#define endl '\n'
const int inf = 1e18+7;
const int sz = 2e5+5;
void solve() {
//freopen("bank.in" , "r" , stdin);
//freopen("bank.out" , "w" , stdout);
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];
bool ok = false;
for(int bt = 0;bt < 1 << m;bt++){
int cost = 0;
for(int i = 0; i < m;i++){
if(bt & (1 << i)){
cost+=b[i];
}
}
if(cost == a[0]){
ok = true;
break;
}
}
if(ok){
cout << "YES" << endl;
}
else{
cout << "NO" << endl;
}
}
signed main() {
run;
int t = 1;
//cin >> t;
while (t--) {
solve();
}
}
// 11111100000
