#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define ll long long
#define ld long double
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()
template <typename T> using ord_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n, m, a[20], b[20], dp[1 << 20];
int main() {
ios_base::sync_with_stdio(false), cin.tie(NULL);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
#endif
memset(& dp, -1, sizeof(dp));
cin >> n >> m;
for (int i = 0; i < n; i++) cin >> a[i];
for (int i = 0; i < m; i++) cin >> b[i];
dp[0] = 0;
int cur = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < (1 << m); j++) {
if (dp[j] >= cur) {
for (int k = 0; k < m; k++) {
if (j >> k & 1) continue;
if (dp[j] + b[k] <= cur + a[i])
dp[j ^ (1 << k)] = dp[j] + b[k];
}
}
}
cur += a[i];
}
for (int i = 0; i < (1 << m); i++)
if (dp[i] == cur) return cout << "YES", 0;
cout << "NO";
}
