#include <bits/stdc++.h>

using namespace std;

int W[10000];

int main()
{
    int L; cin >> L;
    int N; cin >> N;

    for (int i = 0; i < N; ++i) cin >> W[i];

    sort(W, W + N);

    int sum = 0;

    for (int i = 0; i < N; ++i) {
        if (sum + W[i] > L) {
            cout << i << endl;
            return 0;
        } else {
            sum += W[i];
        }
    }

    cout << N << endl;
}