// Calm down.
// Think three times, code twice.
#include "bits/stdc++.h"
#define forr(_a,_b,_c) for(int _a = (_b); _a <= (_c); ++_a)
#define ford(_a,_b,_c) for(int _a = (_b) + 1; _a --> (_c);)
#define forf(_a,_b,_c) for(int _a = (_b); _a < (_c); ++_a)
#define st first
#define nd second
#define ll long long
#define ull unsigned long long
#define pii pair <int,int>
#define pll pair <ll,ll>
#define piii pair <int,pii>
#define vi vector <int>
#define pb push_back
#define mp make_pair
#define all(x) begin(x),end(x)
#define mask(i) (1LL << (i))
#define bit(x, i) (((x) >> (i)) & 1)
#define bp __builtin_popcountll
#define file "test"
using namespace std;
const int N = 2e6 + 5;
const int mod = 1e9 + 7; // 998244353
const ll oo = 1e18;
int n, m, a[N], b[N], s[N];
bool dp[25][N];
void to_nho_cau() {
cin >> n >> m;
forr(i, 1, n) cin >> a[i];
forr(i, 1, m) cin >> b[i];
forr(j, 0, mask(m) - 1) {
int sum = 0;
forr(i, 0, m - 1) {
if(bit(j, i)) {
sum += b[i + 1];
}
}
s[j] = sum;
}
forr(i, 1, n) {
forr(j, 0, mask(m) - 1) {
// cout << i << " " << j << " " << s[j] << "\n";
if(s[j] == a[i]) {
dp[i][j] = 1;
}
}
}
forr(j, 0, mask(m) - 1) {
if(dp[n][j] == 1) {
cout << "YES\n";
return;
}
}
cout << "NO\n";
}
signed main(){
ios_base::sync_with_stdio(0);cin.tie(0);
#ifdef LOCAL
freopen(file".inp","r",stdin);
freopen(file".out","w",stdout);
#endif
int t = 1;
//cin >> t;
while(t--) to_nho_cau();
}
/*
1.self check:
2.long long
3.size of array
4.code for testing
5.initializing
6.modulo number
*/
/**
∧__∧
（｀•ω• )づ__∧
（つ /( •ω•。)
しーＪ (nnノ) pat pat
**/
/** /\_/\
* (= ._.)
* / >☕ \>💻
**/
