#include <bits/stdc++.h>
using namespace std;
int n,m;
int a[23];
int b[23];
void read(){
cin>>n>>m;
int i;
for(i=0;i<n;++i)
cin>>a[i];
for(i=0;i<m;++i)
cin>>b[i];
}
struct plata{
int ind,val;
bool operator != (plata ot){
return (ind!=ot.ind || val!=ot.val);
}
bool operator == (plata ot){
return (ind==ot.ind && val==ot.val);
}
}dp[1050000];
bool get_dp(){
dp[0]={0,a[0]};
plata imp={-1,0};
int i,bit;
for(i=1;i<(1<<m);++i){
dp[i]=imp;
for(bit=0;bit<m;++bit)
if(i&(1<<bit)){
int vechi=i^(1<<bit);
int ind=dp[vechi].ind;
int new_val=dp[vechi].val-b[bit];
if(dp[vechi]!=imp && new_val>=0){
if(new_val){
dp[i].ind=ind;
dp[i].val=new_val;
}
else{
dp[i].ind=ind+1;
dp[i].val=a[ind+1];
}
}
}
}
plata complet={n,0};
for(i=1;i<(1<<m);++i)
if(dp[i]==complet)
return 1;
return 0;
}
void write(bool ans){
cout<<((ans)?"YES":"NO");
}
int main()
{
read();
write(get_dp());
return 0;
}
