import java.io.*;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
 
public class Main {
    public static void main (String[] args) throws IOException
    {
    	Scanner sc = new Scanner(System.in);
    
    	int L = sc.nextInt();
    	int N = sc.nextInt();
    	
    	int W[] = new int [N];
    	
    	for (int i = 0 ; i <= N-1 ; i++){
    		W[i] = sc.nextInt();
    	}
    	
    	Arrays.sort(W);
    	System.out.println(solve(W,L,N));
    }
    
    private static int solve (int W[] , int L , int N){
    	int sum = 0;

    	for (int i=0 ; i <= N-1 ; i++ ){
    		
    		if (sum + W[i] > L){
    			return i;
    		} else {
    			sum = sum + W[i];
    		}
    		
    	}
    	
    	return N;
    }
}