#include <bits/stdc++.h>
#define st first
#define nd second
using lint = int64_t;
constexpr int mod = 998244353;
constexpr int inf = 0x3f3f3f3f;
constexpr lint linf = 0x3f3f3f3f3f3f3f3f;
using namespace std;
int main() {
cin.tie(nullptr)->sync_with_stdio(false);
int n, m;
cin>>n>>m;
vector<int>a(n), b(m);
for(int& i : a) cin>>i;
for(int& i : b) cin>>i;
vector<int>dp(1<<m, -1), cnt(1<<m, -1);
dp[0] = cnt[0] = 0;
for(int mask=0;mask<1<<m;mask++){
if(dp[mask] == -1) continue;
if(dp[mask] == n){
cout<<"YES\n";
return 0;
}
for(int i=0;i<m;i++){
if(mask>>i&1) continue;
if(cnt[mask] + b[i] < a[dp[mask]]){
cnt[mask|(1<<i)] = cnt[mask] + b[i];
dp[mask|(1<<i)] = dp[mask];
}
else if(cnt[mask] + b[i] == a[dp[mask]]){
cnt[mask|(1<<i)] = 0;
dp[mask|(1<<i)] = dp[mask] + 1;
}
}
}
cout<<"NO\n";
return 0;
}
