#include <bits/stdc++.h>
#define ll long long
#define pii pair <int, int >
#define pll pair <ll, ll >
#define FOR(i,a,b ) for (int i =a; i <= b ;i++)
#define FORD(i,a,b) for (int i =a; i >= b ; i--)
using namespace std;
const ll nMax= 2e6 +5;
const ll oo =1e9;
const ll mod =1e9 +7;
ll n, m , salary[nMax], bankNotes[nMax] ;
//ll people[nMax], leftover[nMax];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
cin >> n >> m ;
FOR(i, 0, n-1) cin >> salary[i] ;
FOR(i, 0, m -1 ) cin >> bankNotes[i];
vector <ll> leftover(1 << m , -1) , people(1 << m , -1);
leftover[0] = 0;
people[0] = 0;
FOR(mask, 1, (1 << m ) - 1) {
FOR(i, 0, m -1) {
if ((mask & (1 << i)) == 0 ) continue;
int prev = mask ^ (1 << i ) ;
if (people[prev] == -1) continue;
ll newamount = leftover[prev] + bankNotes[i];
ll targetcur = salary[people[prev]];
if (newamount < targetcur ) {
people[mask] = people[prev] ;
leftover[mask] = newamount;
}
else if (newamount == targetcur) {
people[mask] = people[prev] +1;
leftover[mask] = 0;
}
}
if (people[mask] == n ) {
cout <<"YES";
return 0;
}
}
cout << "NO";
return 0;
}
