
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {

	private static String YES = "Yes";
	private static String NO = "No";

	public static void main(String[] args) {

		Scanner scan = new Scanner(System.in);

		long monsterHP = scan.nextLong();
		long nunberSPATK = scan.nextLong();

		List<Long> listInput = new ArrayList<Long>();
		for (int i = 0; i < nunberSPATK; i++) {
			listInput.add(scan.nextLong());
		}

		scan.close();

		for(int i = 0; i < nunberSPATK; i++) {
			monsterHP -= listInput.get(i);
			if (monsterHP <= 0) {
				System.out.println(YES);
				return;
			}
		}
		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