#include <bits/stdc++.h>
using namespace std;
#define lalala ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define endl "\n"
#define N 22
#define int long long int
#define big 10000000
#define pb push_back
#define ins insert
#define f first
#define s second
int n,m;
int sal[N],bank[N];
vector<vector<int>> knap[N];
int dp[N][(1<<22)];
int coz(int i,int durum){
if(i>=n)return 1;
if(dp[i][durum]!=-1)return dp[i][durum];
dp[i][durum]=0;
for(auto u:knap[i]){
int ok=1;
int yeni=durum;
for(auto x:u){
if((yeni&(1<<x))==0){
ok=0;break;
}
yeni^=(1<<x);
}
if(ok){
dp[i][durum]=max(dp[i][durum],coz(i+1,yeni));
}
}
return dp[i][durum];
}
signed main(){
lalala;
memset(dp,-1,sizeof(dp));
cin>>n>>m;
for(int i=0;i<n;i++)cin>>sal[i];
for(int i=0;i<m;i++)cin>>bank[i];
for(int i=1;i<(1<<(m));i++){
int top=0;
vector<int> v;
for(int j=0;j<m;j++){
if(i&(1<<j)){
top+=bank[j];
v.pb(j);
}
}
for(int j=0;j<n;j++){
if(top==sal[j]){
knap[j].pb(v);
}
}
}
for(int i=0;i<n;i++){
if(knap[i].size()==0){
cout<<"NO"<<endl;
return 0;
}
}
if(coz(0,(1<<m)-1))cout<<"YES"<<endl;
else cout<<"NO"<<endl;
}
