#include <iostream>
#include <vector>
using namespace std;
int main() {
int n,m;
cin >> n >> m;
vector<int> people(n);
vector<int> banknotes(m);
for (int &p:people) {
cin>>p;
}
for (int &b:banknotes) {
cin>>b;
}
vector<int> leftover(1 << m,-1);
vector<int> people_covered(1 << m,-1);
leftover[0]=0;
people_covered[0]=0;
for (int s=0; s < (1 << m); s++) {
for (int last=0; last < m; last++) {
if ((s & (1 << last)) == 0) {
continue;
}
int prev=s & ~(1 << last);
if (people_covered[prev] == -1) {
continue;
}
int new_amt=leftover[prev] + banknotes[last];
int 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] == n) {
cout << "YES";
return 0;
}
}
cout << "NO";
}
