#include <bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
int n, m;
cin >> n >> m;
int a[n], b[m];
for (int i = 0; i < n; i++) cin >> a[i];
for (int j = 0; j < m; j++) cin >> b[j];
vector<int> dp(1001, 0), lu(1001, -1);
dp[0] = 1;
for (int i = 0; i < m; i++) {
for (int j = 1000; j >= b[i]; j--) {
if (!dp[j] && dp[j - b[i]]) {
dp[j] = 1;
lu[j] = i;
}
}
}
if (dp[a[1]]) {
cout << "YES\n";
}
return 0;
}
/*
i j
0 1 2 3 4 5
*/
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