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

int main()
{
    int l, n;
    cin >> l >> n;
    
    vector<int> vec(n);
    for (int i = 0; i < n; ++i) cin >> vec[i];
    
    sort(vec.begin(), vec.end());
    
    int counter = 1;
    int sum = vec[0];
    
    for (int i = 1; i < n; ++i) {
        sum += vec[i];
        if (sum <= l) ++counter;
        else break;
    }
    
    cout << counter << "\n";
    
    return 0;
}