import java.util.*;

public class Main
{
	public static void main(String args[])
	{
		int a,d;
		Scanner sc=new Scanner(System.in);
		a=sc.nextInt();
		int c=sc.nextInt();
		for(int i=0;i<c;i++)
		{
			d=sc.nextInt();
			a=a-d;
			
		}
		if(a<=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