#include<bits/stdc++.h>
// #pragma GCC target("avx2")
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
using namespace std;
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file(s) freopen(s".in", "r", stdin);freopen(s".out", "w", stdout);
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ft first
#define sd second
#define ll long long
#define ull unsigned ll
#define pii pair<int,int>
#define pll pair<ll,ll>
const int N = 1e6 + 10;
const int M = 1e6 + 5;
const int B = 316;
const ll msize = 2;
const ll mod1 = 1e9 + 7;
const ll mod2 = 998244353;
const long double Phi = acos(-1);
const long long inf = 2e18;
const vector <pair<int, int>> dir = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};
ll binmul(ll x, ll ti, ll m);
ll binpow(ll x, ll ti, ll m);
int n, m, a[20], b[20];
int dp[(1 << 20)][21];
vector <ll> g[20];
bool rec(int id, int mask) {
if (id == n) {
return 1;
}
if (dp[mask][id] != -1) return dp[mask][id];
bool ans = 0;
for (auto x : g[id]) {
int intersection = (x & mask);
if (!intersection) {
ans |= rec(id + 1, x + mask);
}
}
return dp[mask][id] = ans;
}
const void solve() {
cin >> n >> m;
for (int i = 1; i <= n; ++ i) cin >> a[i - 1];
for (int i = 1; i <= m; ++ i) cin >> b[i - 1];
for (int i = 0; i < n; ++ i) {
for (int mask = 0; mask < (1 << m); ++ mask) {
ll sum = 0;
for (int j = 0; j < m; ++ j) {
if (mask & (1 << j)) sum += b[j];
}
if (sum == a[i]) g[i].pb(mask);
}
}
memset(dp, -1, sizeof(dp));
if (rec(0, 0)) cout << "YES\n";
else cout << "NO\n";
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
srand(time(NULL));
// file("maze");
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
int tt = 1;
// cin >> tt;
for (int i = 1; i <= tt; ++ i) {
// cout << "Case " << i << ":\n";
solve();
}
#ifndef ONLINE_JUDGE
cerr << "\n" << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
#endif
return 0;
}
// Template functions
ll binmul(ll x, ll ti, ll m) { ll res = 0;while (ti){if(ti & 1)res += x;x += x;ti >>= 1; x %= m; res %= m;} return res;}
ll binpow(ll x, ll ti, ll m) { ll res = 1;while (ti){if(ti & 1)(res *= x)%=m;(x*=x)%=m;ti >>= 1; x %= m; res %= m;} return res;}
