#include <stdio.h>
#include <math.h>
#include <string.h>
int main(void) {
	int L, N;
	scanf("%d%d", &L, &N);
	int W[10000];
	int min = 10000;
	for (int i = 0; i < N; i++) {
		scanf("%d", &W[i]);
	}
	int a = 0;
	int sum = 0;
	int count = 0;
	
	for (int i = 0; i < N; i++) {
		for (int j = 0; j < N - 1 - i; j++) {
			if (W[j] > W[j + 1]) {
				a = W[j];
				W[j] = W[j + 1];
				W[j + 1] = a;
			}
		}
	}
	for (int i = 0; i < N; i++) {
		if (sum + W[i] <= L) {
			sum += W[i];
			count++;
		}
	}
	printf("%d\n", count);
	

	return 0;

}