import java.util.Scanner;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
//------------------------------------------------------------
		int h = sc.nextInt();
		int n = sc.nextInt();
		int maxAttack=0;
		for (int i=0;i<n;i++){
			maxAttack += sc.nextInt();
		}
		sc.close();
		if (maxAttack>=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