#include "bits/stdc++.h"
using namespace std;
int main(){
ios::sync_with_stdio(false); cin.tie(nullptr);
int n, m;
cin >> n >> m;
vector<int> a(n), b(m);
for(int &i : a)
cin >> i;
for(int &i : b)
cin >> i;
int ok = 0;
vector<int> dp(1 << m, -1), dp2(1 << m, -1);
dp[0] = 0, dp2[0] = 0;
for(int mk = 0; mk < (1 << m); ++mk){
for(int i = 0; i < m; ++i)
if(mk >> i & 1)
if(~dp2[(mk & ~(1 << i))]){
if(dp[(mk & ~(1 << i))] + b[i] < a[dp2[(mk & ~(1 << i))]])
dp2[mk] = dp2[(mk & ~(1 << i))], dp[mk] = dp[(mk & ~(1 << i))] + b[i];
else if(dp[(mk & ~(1 << i))] + b[i] == a[dp2[(mk & ~(1 << i))]])
dp2[mk] = dp2[(mk & ~(1 << i))] + 1, dp[mk] = 0;
}
ok |= (!(dp2[mk]^n));
}
cout << (ok ? "YES" : "NO") << "\n";
return 0;
}
