import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long h = sc.nextLong();
        long n = sc.nextLong();
        long ret = 0;
        for(int i=0;i<n;i++){
          long a = sc.nextLong();
          ret += a;
        }
      if(ret>=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