#include <bits/stdc++.h>
#define pb push_back
#define ss second
#define ff first
#define N 100005
#define inf 1000000009
#define ll long long
#define mid(a,b) (a+b)/2
using namespace std;
int n,m,b[30],a[30],c,v[1009][35],dp[1009][35],mx;
void bit(int pos,int val){
if(pos == m){
int sum = 0;
for(int i = 0;i < m;i++)
if((1 << i) & c)
sum += b[i];
if(sum == val) v[val][c] = 1;
return;
}
for(int i = 0;i < 2;i++){
if(i == 1)
c |= (1 << pos);
bit(pos + 1,val);
c ^= (1 << pos);
}
}
int main()
{
cin >> n >> m;
for(int i = 1;i <= n;i++)
cin >> a[i];
for(int i = 0;i < m;i++)
cin >> b[i];
for(int i = 1;i <= n;i++){
c = 0;
bit(0,a[i]);
}
mx = (1 << m) - 1;
for(int i = 0;i < mx;i++)
dp[0][i] = 1;
for(int i = 1;i <= n;i++){
for(int j = 0;j < mx;j++){
if(v[a[i]][j] == 1){
dp[a[i]][j] = (dp[a[i - 1]][mx ^ j]);
}
}
}
for(int i = 0;i < (1 << m);i++){
if(dp[a[n]][i] == 1) return cout << "YES\n",0;
}
cout << "NO\n";
}
