#include<stdio.h>

#define N 10001

int main(void){
	int n = 0;
	int l = 0;
	int w[N];
	int x = 0;
	int i = 0;
	int j = 0;
	int flag = 0;
	int count = 0;

	scanf("%d %d",&l ,&n);
	for(i = 0;i < n;i++){
		scanf("%d",&x);
		for(j = 1;flag == 0;j++){
			if(j == x){
				w[j] = x;
				flag = 1;
			}
		}
		flag = 0;
	}
	x = 0;
	for(j = 1;flag == 0;j++){
		if(w[j] != 0){
			x += w[j];
			count += 1;
			if(x > l){
				count -= 1;
				flag = 1;
			}
		}
	}

	printf("%d", count);

	return 0;
}