#include <bits/stdc++.h>
#define pb push_back
#define pf push_front
using namespace std;
#define F first
#define S second
typedef long long ll;
#define pii pair <int, int>
#define pll pair <ll, ll>
typedef long double ld;
const ll N = 2500 + 10;
const ll mod = 998244353;
ll um(ll a, ll b){
return ((1LL * a * b) % mod + mod) % mod;
}
ll subr(ll a, ll b){
return ((1LL * a - b) % mod + mod) % mod;
}
int a[N], b[N];
bool dp[N];
int main() {
ios::sync_with_stdio(false);
cin.tie(NULL);
//freopen("bank.in", "r", stdin);
//freopen("bank.out", "w", stdout);
int n, m;
cin >> n >> m;
for(int i = 0; i < n; i++){
cin >> a[i];
}
for(int i = 0; i < m; i++){
cin >> b[i];
}
dp[0] = true;
for(int i = 0; i < m; i++){
for(int j = a[0]; j >= b[i]; j--){
dp[j] |= dp[j - b[i]];
}
}
if(dp[a[0]]) cout << "YES";
else cout << "NO";
return 0;
}
