#include<bits/stdc++.h>
#define ll long long
#define nl "\n"
#define all(v) v.begin(),v.end()
#define baraa ios_base::sync_with_stdio(false);cin.tie(NULL);
using namespace std;
int main() {
baraa
ll n, m;
cin >> n >> m;
vector<ll> a(n), b(m);
for (ll &i: a)cin >> i;
for (ll &i: b)cin >> i;
vector<vector<ll> > dp(n, vector<ll>((1LL << m), -1));
function<ll(ll, ll, ll)> solve = [&](ll i, ll msk, ll have) {
if (i == n)return 1LL;
if (have == a[i])return dp[i][msk] = solve(i + 1, msk, 0);
if (msk + 1 == (1LL << m) or have > a[i])return 0LL;
if (dp[i][msk] != -1) return dp[i][msk];
ll ret = 0;
for (ll j = 0; j < m; j++) {
if (msk >> j & 1)continue;
ret |= solve(i, msk | (1LL << j), have + b[j]);
}
return dp[i][msk] = ret;
};
cout << (solve(0, 0, 0) ? "YES" : "NO");
return 0;
}
