#include <iostream>
#include <map>
#include <string>
#include <vector>

using namespace std;

static void setup()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
}

static void run()
{
    int l, n;
    cin >> l >> n;

    map<int, int> ws;
    for (auto i = 0; i < n; ++i) {
        int w;
        cin >> w;
        ws[w] += 1;
    }

    auto rl = 0;
    auto rn = 0;
    for (auto wp : ws) {
        const auto wl = wp.first * wp.second;
        if (rl + wl > l) {
            const auto tn = (l - rl) / wp.first;
            rn += tn;
            break;
        }
        else {
            rl += wl;
            rn += wp.second;
        }
    }

    cout << rn << endl;
}

int main(int argc, char **argv)
{
    setup();
    run();
    return 0;
}