This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
//don't copy pls)
/*TAAK ZDES NADO RECURSIU PISAT*/
//I'm not in the danger i am the DANGER
#include "bits/stdc++.h"
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long
#define pb push_back
#define int long long
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
#define pii pair<int,int>
#define sigma signed
using namespace std;
using namespace __gnu_pbds;
const int N = 1e3 + 5;
int mod = 1e9 + 7;
const int INF = 1e18;
int n,m,a[N],b[N],dp[N][N],c[N];
void Gold(){
	cin >> n >> m;
	for(int i = 1 ; i <= n ; i++){
		cin >> a[i];
	}
	for(int i = 1 ; i <= m ; i++){
		cin >> b[i];
	}
	if(n == 1){
		int x = a[1];
		string ans = "NO";
		for(int mask = 0 ; mask < (1 << m) ; mask++){
			int sum = 0;
			for(int i = 1 ; i <= m ; i++){
				if(((mask >> (i - 1)) & 1)){
					sum += b[i];
					// cout << i << ' ';
				}
			}
			// cout << '\n';
			// cout << sum << '\n';
			if(sum == x){
				ans = "YES";
				break;
			}
		}
		cout << ans;
	}
}
sigma main(){
	//freopen("txt.in","r",stdin);
	//freopen("txt.out","w",stdout);
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	srand(time(0));
	int TT = 1;
	// cin >> TT;
	for(int i = 1 ; i <= TT ; i++){
		//cout << "Case " << i << ": ";
		Gold();
	}
}
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