#include<iostream>
using namespace std;
const int N = 100010;
int f[N];
int m, n;
int main()
{
    cin >> m >> n;
    for(int i = 1; i <= n; ++ i)
    {
        int v, w;
        cin >> v;
        w = v;
        for(int j = m; j >= v; --j)
        {
            f[j] = max(f[j], f[j - v] + w);
        }
    }
    cout << m - f[m] << endl;
    return 0;
}