#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
#define ll long long
const int mxN = 1048576;
ll need[20],curr[20];
vector<ll> money[mxN];
ll dp[20][mxN];
bool f(ll i,ll mask){
if(i<0) return 1;
if(money[need[i]].size()==0) return 0;
if(dp[i][mask]!=-1) return dp[i][mask];
bool ok=0;
for(auto it:money[need[i]]){
if(!(mask & it)) ok |= f(i - 1, mask | it);
if(ok) break;
}
return dp[i][mask]=ok;
}
void solve(ll tc) {
ll n,m;cin>>n>>m;
memset(dp,-1,sizeof(dp));
for(ll i=0;i<n;++i) cin>>need[i];
for(ll i=0;i<m;++i) cin>>curr[i];
for(ll mask=0;mask<=(1ll<<m);++mask){
ll tot=0;
for(ll i=0;i<m;++i){
if(mask&(1ll<<i)) tot+=curr[i];
}
money[tot].pb(mask);
}
if(f(n-1,0)) yes;
else no;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
solve(0);
return 0;
}
