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();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	} main {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int H = sc.nextInt(); H sc.nextInt() sc.nextInt sc int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		} int i=0; int i=0; i 0 i<N i N i++ i++ i {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		} {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		} int temp = sc.nextInt(); temp sc.nextInt() sc.nextInt sc H -= temp H temp if (H <= 0) {
				System.out.println("Yes");
				return ;
			} H <= 0 H 0 {
				System.out.println("Yes");
				return ;
			} System.out.println("Yes") System.out.println System.out System System.out "Yes" return ; System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	}
} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	}
} Main
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();
		for (int i=0;i<N;i++ ) {
			int temp = sc.nextInt();
			H -= temp;
			if (H <= 0) {
				System.out.println("Yes");
				return ;
			}
		}
		System.out.println("No");
	}
}
