import java.util.*;
class Yukico5 {
	public static void main(String[] args){
		Scanner in = new Scanner(System.in);
		int l = in.nextInt();
		int n = in.nextInt();
		int[] w = new int[n];
		for(int i=0; i<n; i++) {
			w[i] = in.nextInt();
		}
		Arrays.sort(w);
		int a=0;
		for(int i=0; i<n; i++) {
			if(l >= w[i]+a) {
				a = w[i];
			}
			else {
				System.out.println(i);
				break;
			}
		}
	}
}