#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define debug(x) cerr << x << '\n'
#define all(x) (x).begin(), (x).end()
#define exist(s, e) ((s).fine(e) != (s).end())

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    ll l, n;
    cin >> l >> n;
    vector<int> w(n);
    for (ll i = 0;i < n;i++) {
        cin >> w[i];
    }

    sort(all(w));
    ll tmp = 0;

    for (ll i = 0;i < n;i++) {
        tmp += w[i];
        if (tmp > l) {
            cout << i << '\n';
            return 0;
        }
    }

    cout << n << '\n';
    return 0;

}