#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
vector<int> a(n), b(m);
for (int i = 0; i < n; i++)
cin >> a[i];
for (int i = 0; i < m; i++)
cin >> b[i];
sort(a.begin(), a.end(), greater<int>());
long long total = 0;
for (int x : a)
total += x;
vector<long long> p(m + 1, 0);
for (int i = 0; i < n; i++)
p[i + 1] = p[i] + a[i];
int s = 1 << m;
vector<long long> c(s, 0);
for (int ma = 1; ma < s; ma++) {
int l = ma & -ma;
int id = __builtin_ctz(l);
c[ma] = c[ma ^ l] + b[id];
}
vector<char> dp(s, 0);
dp[0] = 1;
for (int ma = 1; ma < s; ma++) {
if (!dp[ma])
continue;
long long u = c[ma];
if (u == total) {
cout << "YES\n";
return 0;
}
int k = int(upper_bound(p.begin(), p.end(), u) - p.begin()) - 1;
if (k >= n) {
cout << "YES\n";
return 0;
}
long long r = u - p[k];
if (r > a[k])
continue;
for (int i = 0; i < m; i++) {
if (ma & (1 << i))
continue;
long long next = u + b[i];
if (next > total)
continue;
if (r + b[i] <= a[k]) {
dp[ma | (1 << i)] = 1;
}
}
}
cout << "NO\n";
return 0;
}
