#include <bits/stdc++.h>

using namespace std;

#define ll long long 
#define debug if(0)

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int l, n; cin>>l>>n;
	vector<int> w(n);
	for(int &x : w) cin>>x;
	sort(w.begin(), w.end());
	int sum = 0, ans = 0;
	for(int i=0; i<n; i++) {
		if((sum+w[i]) > l) break;
		else {
			sum += w[i];
			ans++;
		}
	}
	cout<<ans<<"\n";
}