#include <bits/stdc++.h>
using namespace std;
#define sz(x) (int)(x).size()
const int MAXN = 20;
int n, m;
bool invalid[1 << MAXN];
int notes[MAXN], sal[MAXN];
pair<int, int> dp[1 << MAXN];
int32_t main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
cin >> n >> m;
for(int i = 0; i < n; i++) cin >> sal[i];
for(int i = 0; i < m; i++) cin >> notes[i];
// fill(dp, dp + (1 << n), make_pair(1e9, 1e9));
dp[0] = make_pair(0, 0);
for(int i = 0; i < (1 << m); i++){
for(int j = 0; j < m; j++){
if(i & (1 << j)){
if(invalid[i ^ (1 << j)]) continue;
pair<int, int> curr = dp[i ^ (1 << j)];
if(curr.first < n && curr.second + notes[j] < sal[curr.first]){
curr.second += notes[j];
dp[i] = curr;
}
else if(curr.first < n && curr.second + notes[j] == sal[curr.first]){
curr.first++;
curr.second = 0;
dp[i] = curr;
}
else{
invalid[i] = true;
continue;
}
}
}
if(!invalid[i] && dp[i].first == n){
cout << "YES\n";
return 0;
}
}
cout << "NO\n";
return 0;
}
