#include <bits/stdc++.h>
using namespace std;
#define nl '\n'
#define pb push_back
const int N = 1e5 + 1;
int n, m, a[21], b[21];
vector< int >mp[N];
bool ch;
void rec( int i, int sum )
{
if( i == n )
{
cout <<"YES\n";
exit(0);
}
for( int x: mp[a[i]] )
if( sum + x == (sum | x) )
rec(i + 1, sum + x);
}
void solve()
{
cin >>n >>m;
for( int i = 0; i < n; ++i )
cin >>a[i];
for( int j = 0; j < m; ++j )
cin >>b[j];
for( int mask = 0; mask < (1 << m); ++mask )
{
int sum = 0;
for( int i = 0; i < m; ++i )
if( (1 << i) & mask )
sum += b[i];
mp[sum].pb( mask );
}
rec(0, 0);
cout <<"NO\n";
}
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
int T = 1;
// cin >>T;
while( T-- )
solve();
}
