#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
pair <int, int> dp[1 << 20];
#define ONLINE_JUDGE
void solve() {
fill(dp, dp + (1 << 20), pair <int, int> {-1, 0});
int n, m;
cin >> n >> m;
vector <int> a(n);
for(int &i : a)
cin >> i;
vector <int> b(m);
for(int &i : b)
cin >> i;
dp[0] = {0, 0};
for(int mask = 1; mask < (1 << m); mask++) {
for(int i = 0; i < m; i++) {
if((mask >> i) & 1) {
auto [num, left] = dp[mask ^ (1 << i)];
if(num == -1)
continue;
if(left + b[i] == a[num]) {
dp[mask] = {num +1, 0};
} else if(left + b[i] < a[num]) {
dp[mask] = {num, left + b[i]};
}
}
}
if(dp[mask].first == n) {
cerr << mask;
cout << "YES";
return;
}
}
cout << "NO";
return;
}
signed main() {
#ifndef ONLINE_JUDGE
freopen(".in", "r", stdin);
freopen(".out", "w", stdout);
#endif
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int t = 1; //cin >> t;
for(int i = 1; i <= t; i++) {
solve();
}
return 0;
}
