#include <bits/stdc++.h>
#define int int64_t
using namespace std;
void solve(){
int n, m; cin >> n >> m;
vector<int> a(n), b(m);
for(auto &i : a) cin >> i;
for(auto &i : b) cin >> i;
vector<vector<int>> sub;
for(int i = 0; i < (1LL<<m); i++){
vector<int> cur;
for(int j = 0; j < m; j++){
if(i & (1LL << j)){
cur.push_back(b[j]);
}
}
sub.push_back(cur);
}
for(auto &i : sub){
int k = accumulate(i.begin(),i.end(),0);
if(k == a[0]){
cout << "YES\n";
return;
}
}
cout << "NO\n";
}
signed main(){
cin.tie(0)->sync_with_stdio(0);
int _;// cin >> _; cout.tie(0);
while(_--) solve();
}
