#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ll people_num, note_num;
cin >> people_num >> note_num;
vector<ll> people(people_num);
vector<ll> banknotes(note_num);
for(ll &p : people){ cin >> p; }
for(ll &b : banknotes){ cin >> b; }
vector<ll> leftover(1 << note_num, -1);
vector<ll> people_covered(1 << note_num, -1);
leftover[0] = 0;
people_covered[0] = 0;
for (ll s = 0; s < (1 << note_num); s++) {
for (ll last = 0; last < note_num; last++) {
if ((s & (1 << last)) == 0) { continue; }
ll prev = s & ~(1 << last);
if (people_covered[prev] == -1) { continue; }
ll new_amt = leftover[prev] + banknotes[last];
ll curr_target = people[people_covered[prev]];
if (new_amt < curr_target) {
people_covered[s] = people_covered[prev];
leftover[s] = new_amt;
}
else if (new_amt == curr_target) {
people_covered[s] = people_covered[prev] + 1;
leftover[s] = 0;
}
}
if (people_covered[s] == people_num) {
cout << "YES" << endl;
return 0;
}
}
cout << "NO" << endl;
}
