#include<bits/stdc++.h>
#define int long long
using namespace std;
signed 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) {
int 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 prev[(1 << m)];
int cur[(1 << m)];
for (int j = 0; j < (1 << m); ++j) {
prev[j] = cur[j] = false;
}
for (int i: dp[a[0]]) {
prev[i]++;
}
for (int i = 1; i < n; ++i) {
for (int j = 0; j < (1 << m); ++j) {
if (!prev[j]) {
continue;
}
for (int val: dp[a[i]]) {
if ((val & j) == 0) {
cur[val + j] += prev[j];
}
}
}
for (int j = 0; j < (1 << m); ++j) {
prev[j] = cur[j];
cur[j] = false;
}
}
bool bo = false;
for (int i = 0; i < (1 << m); ++i) {
bo = bo or prev[i];
}
if (bo) {
cout << "YES";
} else {
cout << "NO";
}
}
