import java.util.*;
import static java.lang.Math.ceil;
class Main{
	public static void main(String[] args){
		Scanner input = new Scanner(System.in);
		int health = input.nextInt();
		int n = input.nextInt();
		Vector<Integer> a = new Vector<>(n);
		int sum = 0;
		for(int i = 0;i < n; ++i){
			int x = input.nextInt();
			a.add(x);
		}
		for(int i = 0;i < n; ++i){
			sum += a.get(i);
		}
		if(sum >= health){
			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