import java.util.*;

public class Main{
  
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int hitPoint = sc.nextInt();
    int attackCount = sc.nextInt();
    
    int list[] = new int[attackCount];
    int damage = 0;
    for(int i =0; i < attackCount; ++i){
      list[i] = sc.nextInt();
      damage  += list[i];      
    }
    
    if(hitPoint <= damage){
      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