#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
int a[n], b[m];
for (int i = 0; i < n; i++) cin >> a[i];
for (int i = 0; i < m; i++) cin >> b[i];
vector<vector<int>> sum(1001);
for (int p = 0; p < (1<<m); p++) {
int s = 0;
for (int i = 0; i < m; i++) {
if ((p>>i)&1) s += b[i];
}
if (s <= 1000)
sum[s].push_back(p);
}
vector<vector<int>> dp(n, vector<int>(1<<m, 0));
for (int mask : sum[a[0]])
dp[0][mask] = 1;
for (int i = 1; i < n; i++) {
for (int p = 0; p < (1 << m); p++) {
if (dp[i - 1][p] == 0) continue;
for (int q : sum[a[i]]) {
if (!(p & q)) {
dp[i][p | q] = 1;
}
}
}
}
if (count(dp[n - 1].begin(), dp[n - 1].end(), 1) == 0)
cout << "NO\n";
else
cout << "YES\n";
return 0;
}
