import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		solve();
	}
	static void solve() {
		Scanner sc = new Scanner(System.in); 
		int h = sc.nextInt();
		int n = sc.nextInt();
		int sum = 0;
		int array[] = new int [n];
		for(int i = 0; i<n; i++) {
			array[i] = sc.nextInt();
			sum+=array[i];
			}
		if(sum>=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