#include <iostream>
#include <algorithm>
#include <cstdio>
#include <string>

#define ll long long

using namespace std;

int w[10001];

int main(){
    
   int l,n;
   cin>>l>>n;
   for(int i=0;i<n;++i) cin>>w[i];
   sort(w,w+n);
   int ans=0,sum=0,j=0;
   while(sum+w[j]<=l){
       sum+=w[j++];
       ans++;
       if(j==n) break;
   }
   cout<<ans<<endl;

   return 0;
}