#include <iostream>
#include <algorithm>
using namespace std;
void printArray(int a[],int n){
    for(int i=0;i<n;i++){
        cout<<a[i]<<" ";
    }
    cout<<endl;
}
int calcBlock(int a[],int n,int width){
    int count=0,i;
    while(true){
        if(i<n && (count+a[i])<=width){
            count+=a[i];
        }else{
            return i;
        }
        i++;
    }
    return i;
}
int main(){
    int width,n;
    cin>>width>>n;
    int a[n];
    for(int i=0;i<n;i++){
        cin>>a[i];
    }
    sort(a,a+n);
    cout<<calcBlock(a,n,width)<<endl;
}