#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;
#define db long double
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define vii vector<pii>
#define vll vector<pll>
#define endl '\n'
#define all(x) x.begin(), x.end()
#define fastio\
ios_base::sync_with_stdio(0);\
cin.tie(0);\
cout.tie(0)\
#define int long long
int a[25], b[25], n, m;
signed main(){
cin >> n >> m;
for(int i = 1; i <= n; i++){
cin >> a[i];
}
for(int i = 1; i <= m; i++){
cin >> b[i];
}
for(int mask = 1; mask < (1 << m); mask++){
int s = 0;
for(int j = 0; j < m; j++){
if((1 << j) & mask){
s += b[j + 1];
}
}
if(s == a[1]){
cout << "YES";
return 0;
}
}
cout << "NO";
}
