#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int L,N; cin >> L >> N;
    vector<int> W(N);
    for(auto &w : W) cin >> w;
    sort(W.begin(),W.end());

    int answer = 0;
    for(auto &w : W){
        if(w > L) break;
        L -= w; answer++;
    }
    cout << answer << endl;
}