// اللهم صل على محمد وعلى ال محمد كما صليت على ابراهيم وعلى ال ابراهيم انك حميد مجيد
#include "bits/stdc++.h"
using namespace std;
//#define ll long long
#define int long long
#define pb push_back
#define applejuice ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
const int mod=1e9+7;
const int inf=1e18;
const int mxsz=26;
int off=1;
const int sz=1<<20;
int dp[mxsz][sz];
vector<int>sums[1004];
signed main() {
applejuice;
int n,m;
cin>>n>>m;
int a[n+1],b[m+1];
for (int i=1;i<=n;i++){
cin>>a[i];
}
for (int j=1;j<=m;j++){
cin>>b[j];
}
dp[0][0]=1;
for (int ms=0;ms<(1<<m);ms++){
int s=0;
for (int i=1;i<=m;i++){
if (ms&(1<<i))s+=b[i];
}
if (s<=1000)sums[s].pb(ms);
}
for (int i=1;i<=n;i++){
for (int ms=0;ms<(1<<m);ms++){
if (dp[i-1][ms]){
for (auto x:sums[a[i]]){
if (ms != x){
dp[i][ms|x]=1;
}
}
}
}
}
bool flag=false;
for (int i=0;i<(1<<m);i++){
flag|=dp[n][i];
}
if (flag)cout<<"YES"<<endl;
else cout<<"NO"<<endl;
}
