// [BANK]
//05-09-2025
#include <bits/stdc++.h>
using namespace std;
#define nl "\n"
#define sp " "
const int maxn = 20;
int n, m, a[maxn+5], b[maxn+5];
vector <int> v[maxn+5];
void precomp()
{
cin >> n >> m;
for (int i = 0; i<n; ++i) cin >> a[i];
for (int i = 0; i<m; ++i) cin >> b[i];
}
bool backtrack(int i, int val)
{
if (i==n) return true;
bool res = false;
int sz = v[i].size();
for (int j = 0; j<sz; ++j)
{
int h = v[i][j];
int temp = val|h;
if (temp == val+h)
{
res = res | backtrack(i+1, temp);
}
}
return res;
}
void solve()
{
for (int S = 0; S<(1<<m); ++S)
{
int temp = 0;
for (int j = 0; j<m; ++j)
{
if (S&(1<<j)) temp += b[j];
}
for (int i = 0; i<n; ++i)
if (temp == a[i]) v[i].push_back(S);
}
if (backtrack(0, 0)) cout << "YES";
else cout << "NO";
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
precomp();
solve();
return 0;
}
