import java.util.Scanner;
public class Main{
	public static void main(String[]args) {
		Scanner sc=new Scanner(System.in);
		int []array=new int[2];
		int sum=0;
		for(int i=0;i<2;i++) {
			array[i]=sc.nextInt();
		}
		int []arr=new int[array[1]];
		for(int i=0;i<array[1];i++) {
			arr[i]=sc.nextInt();
			sum=sum+arr[i];
		}
		if(sum<array[0])
		  System.out.println("No");
		else
			System.out.println("Yes");
	}
	
}
/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