/**
* author: milos
* created: 22.03.2021 08:41:57
**/
#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n, m;
cin >> n >> m;
vector<int> a(n);
vector<int> b(m);
for (int i = 0; i < n; i++) cin >> a[i];
for (int i = 0; i < m; i++) cin >> b[i];
const int MAX = 2e4 + 5;
vector<vector<int>> v(MAX);
for (int i = 0; i < (1 << m); i++) {
int sum = 0;
for (int j = 0; j < m; j++) {
if (i & (1 << j)) {
sum += b[j];
}
}
v[sum].push_back(i);
}
vector<int> masks;
masks.push_back(0);
vector<vector<bool>> was(n, vector<bool>((1 << m), false));
for (int i = 0; i < n; i++) {
vector<int> nm;
for (int j : v[a[i]]) {
for (int k : masks) {
if ((j ^ k) == (j | k) && !was[i][j ^ k]) {
nm.push_back(j ^ k);
was[i][j ^ k] = true;
}
}
}
swap(nm, masks);
}
cout << (masks.empty() ? "NO" : "YES") << '\n';
return 0;
}
