/*
* Author: Nonoze
* Created: Sunday 06/04/2025
*/
#include <bits/stdc++.h>
using namespace std;
#ifndef DEBUG
#define dbg(...)
#endif
// #define cout cerr << "OUT: "
#define endl '\n'
#define endlfl '\n' << flush
#define quit(x) return (void)(cout << x << endl)
template<typename T> void read(T& x) { cin >> x;}
template<typename T1, typename T2> void read(pair<T1, T2>& p) { read(p.first), read(p.second);}
template<typename T> void read(vector<T>& v) { for (auto& x : v) read(x); }
template<typename T1, typename T2> void read(T1& x, T2& y) { read(x), read(y); }
template<typename T1, typename T2, typename T3> void read(T1& x, T2& y, T3& z) { read(x), read(y), read(z); }
template<typename T1, typename T2, typename T3, typename T4> void read(T1& x, T2& y, T3& z, T4& zz) { read(x), read(y), read(z), read(zz); }
template<typename T> void print(vector<T>& v) { for (auto& x : v) cout << x << ' '; cout << endl; }
#define sz(x) (int)(x.size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define make_unique(v) sort(all(v)), v.erase(unique(all(v)), (v).end())
#define pb push_back
#define mp(a, b) make_pair(a, b)
#define fi first
#define se second
#define cmin(a, b) a = min(a, b)
#define cmax(a, b) a = max(a, b)
#define YES cout << "YES" << endl
#define NO cout << "NO" << endl
#define QYES quit("YES")
#define QNO quit("NO")
// #define int long long
#define double long double
const int inf = numeric_limits<int>::max() / 4;
mt19937 rng(421);
const int MOD = 1e9+7, LOG=20;
void solve();
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
int tt=1;
// cin >> tt;
while(tt--) solve();
return 0;
}
int n, k, m, q;
vector<int> a, b;
unordered_map<int, unordered_map<int, unordered_map<int, int>>> dp;
int brute(int mask, int i, int cur, int act, int popc=m) {
if (i==n) return 1;
if (dp[mask][i].count(cur)) return dp[mask][i][cur];
if (cur==a[i]) return brute(mask, i+1, 0, 0, popc);
if (popc<n-i) return 0;
for (int j=act; j<m&&(cur+b[j])<=a[i]; j++) if (!(mask&(1<<j))) {
if (brute(mask|(1<<j), i, cur+b[j], j+1, popc-1)) return 1;
}
return dp[mask][i][cur]=0;
}
void solve() {
read(n, m);
a.clear(), a.resize(n); read(a);
b.clear(), b.resize(m); read(b);
sort(all(b)), sort(all(a));
if (brute(0, 0, 0, 0)) {
cout << "YES" << endl;
} else {
cout << "NO" << endl;
}
}
