#include <bits/stdc++.h>
using namespace std;
#define fastio ios_base::sync_with_stdio(0); cin.tie(0)
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define ll long long
struct P{
ll x, y;
};
void dbg_out() { cerr << endl; }
template <typename H, typename... T>
void dbg_out(H h, T... t) { cerr << ' ' << h; dbg_out(t...); }
#define dbg(...) { cerr << #__VA_ARGS__ << ':'; dbg_out(__VA_ARGS__); }
const int MAXN = 1<<20;
int dp[MAXN], r[MAXN];
signed main(){
fastio;
memset(dp, -1, sizeof(dp));
int n, m;
cin >> n >> m;
vector<int> pay (n), notes (m);
for (auto &a: pay) cin >> a;
for (auto &a: notes) cin >> a;
bool ans=false;
for (int mask=1; mask<(1<<m); mask++){
assert(dp[mask] == -1 && r[mask] == 0);
for (int i=0; i<m; i++){
if (!(mask & (1 << i))) continue;
int p = mask ^ (1 << i);
int goal = dp[p]+1;
if (goal <= dp[mask]) continue;
if (r[p] + notes[i] == pay[goal]){
dp[mask] = goal;
r[mask] = 0;
break;
}
else{
dp[mask] = dp[p];
r[mask] = r[p] + notes[i];
}
if (dp[mask] == n-1) {
ans = true;
}
}
}
cout << (ans? "YES" : "NO") << '\n';
}
