import java.util.*;

public class Main {
	public static void main(String[] args){
	Scanner scn = new Scanner(System.in);
	int hp = scn.nextInt();
      int n = scn.nextInt();
      int[] a = new int[n];
      int att = 0;
      for(int i=0; i<a.length; ++i){
        a[i] = scn.nextInt();
      }
      for(int i=0; i<a.length; ++i){
        att = att + a[i];
      }
      if(att >= hp){
        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