import java.util.*;
public class Main
{
  public static void main(String[] args)
  {
    Scanner ob=new Scanner(System.in);
    int h=ob.nextInt();
    int a=ob.nextInt();
    int t=0;
    for(int i=1;i<=a;i++)
    {
      int c=ob.nextInt();
      t=t+c;
    }
    if(t>=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