#include<bits/stdc++.h>
using namespace std;
int s,n,dp[55][32777],a[55];
int main(){
	ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
	cin>>s>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	for(int i=1;i<=n;i++){
        for(int j=1;j<=s;j++){
            if(j>=a[i]) dp[i][j]=max(dp[i-1][j],a[i]+dp[i-1][j-a[i]]);
            else dp[i][j]=dp[i-1][j];
        }
    }
    if(dp[n][s]==s) cout<<"YES";
    else cout<<"NO";


    return 0;
}
/**************************************************************
	Problem: 1693
	User: caizhihao
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:9272 kb
****************************************************************/