#include<iostream>
#include<vector>
using namespace std;

int main() {
	long long int N, L, min,num;
	cin >> L >> N;
	vector<long long int>W(N);
	num = 0;
	for (int i = 0; i<N; i++) {
		cin >> W[i];
	}
	for (int i = 0; i<N; i++) {
		for (int j = 0; j<N; j++) {
			if (W[i]<=W[j]) {
				min = W[i];
				W[i]=10001;
			}
			else if(W[i] >= W[j]){
				min = W[j];
				W[j] = 10001;
			}
			
		}
		if (L - min >= 0) {
			L = L - min;
			num++;
		}

	}
	cout << num << endl;
	return 0;
}