import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String[] line1 = sc.nextLine().split(" ");
        String[] line2 = sc.nextLine().split(" ");
        long H = Long.parseLong(line1[0]);
        long N = Long.parseLong(line1[1]);
        sc.close();

        long sum = 0;
        for (String string : line2) {
            sum += Long.parseLong(string);
        }

        String res = "No";

        if (sum >= H) {
            res = "Yes";
        }

        System.out.println(res);
    }

}
/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