import java.util.Scanner;

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 sum=0;
   
   for(int i=0;i<N;i++){
     A[i]=sc.nextInt();
     sum=sum+A[i];
   }

   if(sum>=H){
     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