#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
#define INF (1<<30)
#define INFLL (1ll<<60)
typedef pair<double, int> P;
typedef pair<int, P> E;
#define MOD (1000000007ll)
#define l_ength size
#define EPS (1e-10)

void add_mod(ll &a, ll b){
	a += b;
	a %= MOD;
}

void mul_mod(ll &a, ll b){
	a *= b;
	a %= MOD;
}

int main(void){
	int l,n,w[12345],i;
	cin >> l;
	cin >> n;
	for(i=0; i<n; ++i){
		cin >> w[i];
	}
	sort(w,w+n);
	for(i=1; i<n; ++i){
		w[i] += w[i-1];
		if(w[i] > l){
			cout << i << endl;
			return 0;
		}
	}
	cout << n << endl;
	return 0;
}