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