/*
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*/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
bool ans = false;
bool dp[1048577];
ll idx[1048577];
ll rem[1048577];
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];
}
rem[0]=salaries[0];
dp[0]=true;
for(i=0;i<(1<<m);i++){
for(j=0;j<m;j++){
if(i&(1<<j) && idx[i^(1<<j)]<n && dp[i^(1<<j)]){
ll temp = i^(1<<j);
if(rem[temp]>=money[j]){
dp[i]=true;
rem[i]=rem[temp]-money[j];
if(rem[i]==0){
idx[i]=idx[temp]+1;
rem[i]=salaries[idx[i]];
}
if(idx[i]==n){
ans=true;
}
}
}
}
}
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();
}
}
