/*
* 733_sample.cpp
* 
* No.733 分身並列コーディング
*/

#include <iostream>
#include <vector>

using V = std::vector<int>;

int pattern(const V& times, const int& time, const int& num, const int& first) {
	auto times2 = times;
	if (first != 0) {
		times2[0] = times[first];
		times2[first] = times[0];
	}
	for (auto i = 0; i < num-1; i++) {
		if (times2[i] > 0) {
			for (auto j = i+1; j < num; j++) {
				if (times2[j] > 0) {
					auto tmp = times2[i] + times2[j];
					if (time >= tmp) {
						times2[i] = tmp;
						times2[j] = -1;
					}
				}
			}
		}
	}
	
	auto count = 0;
	for (auto i = 0; i < num; i++) {
		if (times2[i] > 0) {
			count++;
		}
	}
	return count;
}

int main () {
	auto time = 0;
	auto num = 0;
	std::cin >> time >> num;
	V times(num);
	for (auto i = 0; i < num; i++) {
		std::cin >> times[i];
	}
	
	auto ans = num;
	for (auto i = 0; i < num; i++) {
		auto count = pattern(times, time, num, i);
		if (ans > count) {
			ans = count;
		}
	}
	
	std::cout << ans << std::endl;
	
	return 0;
	
}