#include<bits/stdc++.h>
using namespace std;

const int M = 1000000007;

int main() {
    // O(N 2^N)
    int T, n;
    cin >> T >> n;
    vector<int> t(n), dp(1 << n, T * n);
	dp[0] = 0;
    for (int i = 0; i < n; ++i) cin >> t[i];

    for (int i = 0; i < (1 << n); ++i) {
		int rem = T - dp[i] % T;
        for (int j = 0; j < n; ++j)
            if (!((i >> j) & 1))
				dp[i ^ (1 << j)] = min(dp[i ^ (1 << j)], dp[i] + (t[j] <= rem ? t[j] : rem + t[j]));
    }
	cout << (dp[(1 << n) - 1] + T - 1) / T << "\n";
	return 0;
}