#include <bits/stdc++.h>
#include <climits>
using namespace std;
#define f first
#define s second
#define all(a) a.begin(),a.end()
#define sz(a) (int)a.size()
#define int long long
const int N=21;
const int MaxBit=1<<N;
const int INF=INT_MAX;
int salary[N];// lương cần trả
int comp[N]; // tiền công ty có
int n,m;
int peo[MaxBit];
int have[MaxBit];
void solve(){
cin>>n>>m;
for(int i=0;i<n;++i) cin>>salary[i];
for(int i=0;i<m;++i) cin>>comp[i];
for(int mask=1;mask<(1<<n);++mask){
peo[mask]=INF;
have[mask]=INF;
}
for(int mask=1;mask<(1<<m);++mask){
for(int i=0;i<m;++i){
if(!(mask&(1<<i))) continue;
if(have[mask & ~(1<<i)]==INF) continue;
int pre_peo=peo[mask^(1<<i)],pre_have=have[mask^(1<<i)];
if(pre_have+comp[i]==salary[pre_peo]){
have[mask]=0;
peo[mask]=pre_peo+1;
}
if(pre_have+comp[i]<salary[pre_peo]){
have[mask]=pre_have+comp[i];
peo[mask]=pre_peo;
}
}
if(peo[mask]==n){
cout<<"YES";
return;
}
}
cout<<"NO";
}
signed main(){
ios_base::sync_with_stdio(0);cin.tie(0);
int T=1;
while(T--) solve();
}
