/**
* author: hashman
* created:
**/
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "algo/debug.h"
#else
#define debug(...) 42
#endif
int32_t main() {
ios::sync_with_stdio(false);
cin.tie(0);
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];
}
vector<vector<int>> masks(1001);
for (int i = 0; i < (1 << m); i++) {
int sum = 0;
for (int j = 0; j < m; j++) {
if (i & (1 << j)) sum += b[j];
}
if (sum <= 1000) masks[sum].push_back(i);
}
vector<bitset<1048576>> dp(21, bitset<1048576>());
for (int i = 0; i < (1 << m); i++) {
dp[0][i] = true;
}
for (int i = 1; i <= n; i++) {
for (int mask : masks[a[i - 1]]) {
for (int j = mask; j < (1 << m); j = (j + 1) | mask) {
dp[i][j] = dp[i][j] || dp[i - 1][j ^ mask];
}
}
}
if (dp[n][(1 << m) - 1]) cout << "YES\n";
else cout << "NO\n";
}
