/** made by amunduzbaev **/
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ub upper_bound
#define lb lower_bound
#define ll long long
#define ld long double
#define pii pair<int, int>
#define pll pair<ll, ll>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(),x.rend()
#define fastios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define vll vector<ll>
#define vii vector<int>
#define vpii vector<pii>
#define vpll vector<pll>
#define cnt(a)__builtin_popcount(a)
template<class T> bool umin(T& a, const T& b) {return a > b? a = b, true:false;}
template<class T> bool umax(T& a, const T& b) {return a < b? a = b, true:false;}
const int N = 21;
const int mod = 1e9+7;
const ll inf = 1e18;
const ld Pi = acos(-1);
int s, n, m, k, ans;
int used[(1 << N)];
vii make[N];
int a[N], b[N], ok = 1;
void bit(int x){
for(int i=0;i<m;i++) cout<<((x & (1<<i)) ? 1:0);
cout<<"\n";
}
void check(int k, int mask = 0){
if(used[mask]) return;
used[mask] = 1;
if(k == n){
cout<<"YES\n";
ok = 0;
return;
}
for(auto x:make[k]){
//if(m-k > m-cnt(mask)) return;
if((x & mask) == 0) check(k+1, mask | x);
if(ok == 0) return;
}
}
void solve(){
cin>>n>>m;
ll suma = 0, sumb = 0;
for(int i=0;i<n;i++) { cin>>a[i]; suma += a[i]; }
for(int j=0;j<m;j++) { cin>>b[j]; sumb += b[j]; }
if(suma > sumb){
cout<<"NO\n";
return;
}
for(int i=0;i<n;i++){
for(int j=0;j<(1<<m);j++){
int sum = 0;
for(int l=0;l<m;l++) if(j & (1<<l)) sum += b[l];
if(sum == a[i]) make[i].pb(j);
}
}
check(0);
if(ok == 0) return;
cout<<"NO\n";
return;
}
/*
2 2
10 10
10 10
1 20
1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 3
10
5 5 5
3 6
9 8 11
5 4 8 6 3 11
*/
int main(){
fastios
int t = 0;
if(!t) solve();
else {
cin>>t;
while (t--) solve();
}
return 0;
}
