#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define float long double
const int MOD=1e9+7;
// const int MOD=998244353;
const int sqn=450;
const long double eps=1e-6;
const int dx[4]={0,0,1,-1};
const int dy[4]={1,-1,0,0};
long long power(long long a,long long b,long long p=MOD){
long long res=1;
while (b>0){
if (b%2==1) res=(res*a)%p;
b/=2;
a=(a*a)%p;
}
return res;
}
int n,m,arr[21],brr[21];
pair<int,int> dp[2000001];
// we pay off people in order
// mask is subset of notes used
// dp is number of people paid off (a prefix), amount of money left
void runtc(){
cin>>n>>m;
for (int i=0;i<n;i++){
cin>>arr[i];
}
for (int i=0;i<m;i++){
cin>>brr[i];
}
for (int i=1;i<(1<<m);i++){
for (int j=0;j<m;j++){
if (!(i&(1<<j))) continue;
pair<int,int> cur=dp[i^(1<<j)];
int new_amt = cur.second+brr[j];
if (new_amt < arr[cur.first]){
cur.second=new_amt;
dp[i]=max(dp[i],cur);
}
else if (new_amt == arr[cur.first]){
cur.first++;
cur.second=0;
dp[i]=max(dp[i],cur);
}
}
if (dp[i].first==n){
cout<<"YES";
return;
}
}
cout<<"NO";
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
// freopen("movie.in","r",stdin);
// freopen("movie.out","w",stdout);
// freopen("input1.in","r",stdin);
// freopen("output1.out","w",stdout);
//freopen("tower_rush_input.txt","r",stdin);
//freopen("hackercup_output.txt","w",stdout);
int tcs;
// cin>>tcs;
tcs=1;
for (int i=1;i<=tcs;i++){
// cout<<"Case #"<<i<<": ";
runtc();
}
}
