#include <algorithm> 
#include <bitset> 
#include <cctype>
#include <cerrno>
#include <clocale>
#include <cmath>
#include <complex> 
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque> 
#include <exception>
#include <fstream>
#include <functional> 
#include <limits>
#include <list> 
#include <map> 
#include <iomanip>
#include <ios> 
#include <iosfwd> 
#include <iostream>
#include <istream> 
#include <ostream>
#include <queue> 
#include <set> 
#include <sstream> 
#include <stack> 
#include <stdexcept> 
#include <streambuf> 
#include <string> 
#include <utility> 
#include <vector> 
#include <cwchar>
#include <cwctype>
using namespace std;
inline int read()
{
	char ch=getchar();int x=0,f=1;
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-48;ch=getchar();}
	return x*f;
}
const int maxn=50005;
int T,n,t[maxn],f[maxn];
int main()
{
	freopen("hay4sale.in","r",stdin);
	freopen("hay4sale.out","w",stdout);
	T=read(),n=read();
	for(int i=1;i<=n;i++)
	{
		t[i]=read();
	}
	for(int i=1;i<=n;i++)
	for(int j=T;j>=t[i];j--)
	{
		f[j]=max(f[j],f[j-t[i]]+t[i]);
		if(f[j]==T)
		{
			cout<<T;
			return 0;
		}
	}
	cout<<f[T];
	return 0;
}