#include <bits/stdc++.h>
using namespace std;
int n, m;
int a[1005], b[1005];
int sum[(1 << 20) + 5], nr_bit[(1 << 20) + 5];
unordered_set <int> poss[1005], sol;
int main()
{
cin >> n >> m;
for (int i = 0; i < n; i++)
cin >> a[i];
for (int i = 0; i < m; i++)
cin >> b[i];
for (int j = 0; j < (1 << m); j++) {
for (int k = 0; k < m; k++)
if (j & (1 << k)) {
sum[j] += b[k];
nr_bit[j]++;
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < (1 << m); j++) {
if (sum[j] == a[i])
poss[i].insert(j);
}
}
for (int j : poss[0])
sol.insert(j);
for (int i = 1; i < n; i++) {
unordered_set <int> aux;
for (int j : poss[i])
for (int k : sol)
if (nr_bit[j] + nr_bit[k] == nr_bit[j | k])
aux.insert(j | k);
sol = aux;
}
if (sol.size())
cout << "YES\n";
else cout << "NO\n";
return 0;
}
