#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <unordered_set>
#include <set>
#include <unordered_map>
#include <queue>
#include <map>
#define ll signed long long
using namespace std;
int main() {
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<int> dp[1001];
for (int i = 0; i < (1 << m); i++) {
ll sum = 0;
for (int j = 0; j < m; j++) {
if (i & (1 << j)) {
sum += b[j];
}
}
if (sum <= 1000) {
dp[sum].push_back(i);
}
}
int ans[n][(1 << m)];
for (int i = 0; i < n; i++) {
for (int j = 0; j < (1 << m); j++) {
ans[i][j] = 0;
}
}
for (int i: dp[a[0]]) {
ans[0][i]++;
}
for (int i = 1; i < n; i++) {
for (int j = 0; j < (1 << m); j++) {
//we want to get sum of a[i]
vector<int> v = dp[a[i]];
for (int val: v) {
if ((val & j) == 0) {
ans[i][val + j] += ans[i - 1][j];
}
}
}
}
bool bo = false;
for (int i = 0; i < (1 << m); i++) {
bo = bo || ans[n - 1][i];
}
if (bo) {
cout << "YES";
} else {
cout << "NO";
}
}
