#include <bits/stdc++.h>
//#define int long long
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define sc second
#define endl "\n"
#define pii pair<int,int>
using namespace std;
const int MAXN = 2e3+5;
const int mod7 = 1e9+7;
const long long inf = 1e18;
signed main()
{
ios_base::sync_with_stdio(false),cin.tie(0), cout.tie(0);
int tt=1;
//cin >> tt;
while(tt--)
{
int n,m;cin >> n >> m;
int M = (1<<m);
int plate[n];
int novac[m];
for(int i=0; i<n; i++)cin >> plate[i];
for(int i=0; i<m; i++)cin >> novac[i];
vector<pii> dp(M+5, {-1,-1});
dp[0] = {0,0};
for(int i=0; i<M; i++)
{
for(int j=0; j<m; j++)
{
if(i&(1<<j))
{
int premask = (i^(1<<j));
if(dp[premask] == mp(-1,-1))continue;
int cntludi = dp[premask].fi;
int leftover = dp[premask].sc;
int trsum = leftover+ novac[j];
if(trsum == plate[cntludi])
{
dp[i].fi = cntludi+1;
dp[i].sc = 0;
}
if(trsum < plate[cntludi])
{
dp[i].sc = trsum;
dp[i].fi = cntludi;
}
}
}
if(dp[i].fi == n)
{
cout << "YES" << endl;
return 0;
}
}
cout << "NO" << endl;
}
}
/*
2 6
9 10
5 4 8 6 3 11
*/
