#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m; cin >> n >> m;
vector<int> dp(1<<m, -1e18);
dp[0] = 0;
int sum = 0;
vector<int> x(n);
for(int i = 0; i < n; i++){
cin >> x[i];
}
vector<int> g(m);
for(int i = 0; i < m; i++){
cin >> g[i];
}
int c = 0;
for(int i = 0; i < n; i++){
int h = x[i];
sum += h;
for(int y = 0; y < 1<<m; y++){
if(dp[y] == -1e18) continue;
for(int z = 0; z < m; z++){
int j = 1<<z;
if((y&j) == 0){
dp[(y|j)] = dp[y] + g[z];
}
}
}
c = 0;
for(int y = 0; y < 1<<m; y++){
if(dp[y] != sum){
dp[y] = -1e18;
}else{
c++;
}
}
}
if(c > 0){
cout << "YES" << "\n";
}else{
cout << "NO" << "\n";
}
return 0;
}
