#include <bits/stdc++.h>
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)
#define repi(i,a,b) for(int (i)=(a);(i)<(b);(i)++)
using namespace std;
int main()
{
  int l,n;
  cin >> l >> n;
  vector<int> w(n);
  rep(i,n){
    cin >> w[i];
  }
    if(accumulate(w.begin(),w.end(),0)<=l){
    cout << n << endl;
    return 0;
  }
  sort(w.begin(),w.end());
  int sum=0;
  int ans=0;
  int j=0;
  while(sum<=l){
    sum += w[j];
    ans++;
    j++;
    }
  cout << ans-1 << endl;
  return 0;
}