#pragma GCC optimize ("Ofast")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double db;
const ll mod = 1e9 + 7; // 500057 , 1000037 ,10000931 , 90903649 , 998244353, 109000057 , 1090000039
const ll inf = 1e18;
using pl = pair<ll,ll>;
using pi = pair<int,int>;
using vi = vector<int>;
using vl = vector<ll>;
using vpi = vector<pair<int,int>>;
using vpl = vector<pair<ll,ll>>;
#define mp make_pair
#define f first
#define s second
#define foru(i,a,b) for(int i = a ; i <= b;i++)
#define ford(i,a,b) for(int i = a ; i >= b;i--)
#define psh push
#define em emplace
#define eb emplace_back
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define debug(x) cout << x <<" ";
// #define LOCAL 1
void process(){
int n , m;
cin >> n >> m;
ll a[n] , b[m];
foru(i,0,n-1) cin >> a[i];
foru(i,0,m-1) cin >> b[i];
vi cover( (1<<m) , -1 );
vi left( (1<<m) , -1 );
bool ans = 0;
cover[0] = 0;
left[0] = 0;
foru(i,0, (1<<m) - 1){
foru(j,0,m-1){
if( !((i>>j)&1) ) continue;
int newmask = i^(1<<j);
if(cover[newmask] == -1) continue;
if( left[newmask] + b[j] < a[cover[newmask]] ){
cover[i] = cover[newmask] ;
left[i] = left[newmask] + b[j];
}
else if( left[newmask] + b[j] == a[cover[newmask]] ) {
cover[i] = cover[newmask] + 1;
left[i] = 0;
}
}
if( cover[i] == n ) {
ans = 1;
break;
}
}
if(ans) cout << "YES" << '\n';
else cout << "NO" << '\n';
}
int main(void){
#ifdef LOCAL
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
auto start_time = chrono::high_resolution_clock::now();
#endif
ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
process();
#ifdef LOCAL
auto end_time = chrono::high_resolution_clock::now();
double duration = chrono::duration_cast<chrono::milliseconds>(end_time - start_time).count();
cout << "\n[ " << duration << " ms ]\n";
#endif
}
