import java.util.*;
import java.io.*;

class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int h = sc.nextInt();
    int n = sc.nextInt();
    int arr[] = new int[n];
    for(int i=0;i<n;i++){
      arr[i] = sc.nextInt();
      h = h-arr[i];
    }
    if(h<=0) 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