# include <bits/stdc++.h>
# define int long long
using namespace std;
const int N=1e5+5;
int dp[N],n,m,w[N];
signed main(){
	cin>>m>>n;
	for(int i = 1;i<=n;i++)
		cin>>w[i];
	for(int i = 1;i<=n;i++)
		for(int j = m;j>=w[i];j--)
				dp[j]=max(dp[j],dp[j-w[i]]+w[i]); 
	cout<<dp[m];
	return 0;
}