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*/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
bool ans = false;
bool dp[1048577];
void dfs(vector<ll>& salaries,vector<ll>& money,ll mask,ll index){
bool moved=false;
ll i;
if(index==salaries.size()){
ans=true;
}
for(i=0;i<money.size();i++){
if((mask&(1<<i))==0 && dp[(mask&(1<<i))]==false){
if(salaries[index]-money[i]>=0){
mask^=(1<<i);
dp[mask]=true;
salaries[index]-=money[i];
if(salaries[index]==0){
index++;
moved=true;
}
dfs(salaries,money,mask,index);
if(moved){
moved=false;
index--;
}
salaries[index]+=money[i];
mask^=(1<<i);
}
}
}
return;
}
void solve(){
ll n,m,i,j;
cin >> n >> m;
vector<ll>salaries(n);
vector<ll>money(m);
for(i=0;i<n;i++){
cin >> salaries[i];
}
for(i=0;i<m;i++){
cin >> money[i];
}
dfs(salaries,money,0,0);
if(ans){
cout << "YES" << endl;
}
else{
cout << "NO" << endl;
}
}
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
ll t=1;
//cin >> t;
while(t--){
solve();
}
}
