import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int hp = scanner.nextInt();
        int kinds = scanner.nextInt();
        int[] a = new int[kinds];
        for(int i = 0; i < kinds; i++) {
            a[i] = scanner.nextInt();
        }
        scanner.close();
 
        int sum = 0;
        for(int _a : a) {
            sum += _a;
        }
 
        System.out.println(hp <= sum ? "Yes" : "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