// barkolorious - 29 November 2024
// in god, do we trust?
#include <bits/stdc++.h>
using namespace std;
#define FIN(x) freopen(x ".in", "r", stdin)
#define FOUT(x) freopen(x ".out", "w", stdout)
#define int long long
#define pb push_back
#define fr first
#define sc second
#define __ << " " <<
#define check_bit(a, i) (((a) & (1 << (i))) >> (i))
#define flip_bit(a, i) ((a) & ~(1 << (i)))
const int N = 2e5 + 5;
void solve () {
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];
int E = (1 << m);
pair<int, int> dp[E];
dp[0] = {0, 0};
for (int s = 0; s < E; s++) {
if (!s) dp[s] = {-1, -1};
for (int i = 0; i < m; i++) {
if (!check_bit(s, i)) continue;
auto last = dp[flip_bit(s, i)];
if (last.fr == -1) continue;
if (last.sc + b[i] == a[last.fr]) {
dp[s] = {last.fr + 1, 0};
} else if (last.sc + b[i] < a[last.fr]) {
dp[s] = {last.fr, last.sc + b[i]};
}
}
if (dp[s].fr == n) {
cout << "YES" << endl;
return;
}
}
cout << "NO" << endl;
}
/*
-- Sample 1 --
Input:
1 5
8
4 2 5 1 3
Output:
YES
-- Sample 2 --
Input:
2 6
9 10
5 4 8 6 3 11
Output:
NO
*/
/*
g++ -std=c++17 -O2 -Wall -DLOCAL "C:\Users\LENOVO\Desktop\BARKIN\Genel\Programming\Competitive\Questions\oj.uz\IZhO14\IZhO14_bank.cpp" -o _run
*/
int32_t main () {
#ifndef LOCAL
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#endif
#ifdef LOCAL
clock_t __START__ = clock();
FILE* __FILE_IN__ = FIN("C:/Users/LENOVO/Desktop/BARKIN/Genel/Programming/Competitive/_run");
FILE* __FILE_OUT__ = FOUT("C:/Users/LENOVO/Desktop/BARKIN/Genel/Programming/Competitive/_run");
#endif
solve();
#ifdef LOCAL
fclose(__FILE_IN__);
fclose(__FILE_OUT__);
cerr << "Executed in: " << fixed << setprecision(3) << (double) (clock() - __START__) / CLOCKS_PER_SEC << "seconds" << endl;
#endif
return 0;
}
