#include <bits/stdc++.h>
#define int long long
#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define ff first
#define ss second
#define dbg(x) cerr << #x << " = " << x << '\n'
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vvi = vt< vt<int> >;
const int N = 1e6 + 5, mod = 1e9 + 7, inf = 1e18 + 7, B = 500, LIM = (1ll << 20);
int n, m;
vt<int> dp(LIM, -1), lft(LIM, -1), ans;
bool bit (int x, int i) {
return (x >> i & 1);
}
bool check (int x) {
return (x == n);
}
void solve () {
cin >> n >> m;
vt<int> a(n), b(m);
for (int &i: a) cin >> i;
for (int &i: b) cin >> i;
dp[0] = lft[0] = 0;
for (int mask = 0; mask < (1 << m); mask++) {
for (int i = 0; i < m; i++) {
if (bit(mask, i)) {
int mask1 = mask ^ (1 << i);
if (dp[mask1] == -1) continue;
int cur = lft[mask1] + b[i], j = dp[mask1];
if (cur < a[j]) dp[mask] = dp[mask1], lft[mask] = cur;
if (cur == a[j]) dp[mask] = dp[mask1] + 1, lft[mask] = 0;
}
}
ans.pb(dp[mask]);
}
cout << (any_of(all(ans), check) ? "YES" : "NO");
cout << '\n';
}
bool testcases = 0;
signed main() {
cin.tie(0) -> sync_with_stdio(0);
int test = 1;
if (testcases) cin >> test;
for (int cs = 1; cs <= test; cs++) {
solve();
}
}
