#define taskname "bank."
#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(false); cin.tie(nullptr);
using namespace std;
int n, m;
int a[20], b[20];
bool c1[1<<20], c2[1<<20];
vector<int> v[1<<20];
pair<int, int> p[1<<20];
void upd(int i)
{
if (c1[i]) return;
c1[i]=true;
for (auto x : v[i]) upd(i|(1<<x));
}
int main()
{
fastio;
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 i=0; i<(1<<m); ++i)
{
int s=0;
for (int j=0; j<m; ++j)
if (i & (1<<j)) s+=b[j];
else v[i].push_back(j);
p[i].first=s; p[i].second=i;
}
sort(p, p+(1<<m));
int j=0, sum=0;
bool check=true;
upd(0); swap(c1,c2);
for (int i=0; i<n && check; ++i)
{
fill(c1, c1+(1<<m), 0);
check=false; sum+=a[i];
while (p[j].first<sum) ++j;
while (p[j].first==sum)
{
if (c2[p[j].second])
upd(p[j].second), check=true;
++j;
}
swap(c1,c2);
}
if (check) cout << "YES";
else cout << "NO";
}
