import java.util.*;

class Main
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        
        int hitPoint = sc.nextInt();
        int skillNum = sc.nextInt();
        int[] powers = new int[skillNum];
        int totalDamage = 0;
        
        for (int i = 0; i < skillNum; i++) {
            powers[i] = sc.nextInt();
            totalDamage += powers[i];
        }     
        
        if (totalDamage >= hitPoint) {
            System.out.println("Yes");
        } else {
            System.out.println("No");
        }
        
    }
}
        
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz