import java.util.Scanner;
 public class Main {
 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int h = scanner.nextInt();
        int n = scanner.nextInt();

        
      for(int i=0;i<n;i++){
        int a = scanner.nextInt();
      h = h-a;
      }
      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