import 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();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "No");
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	int h = sc.nextInt();
	int n = sc.nextInt();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "No");
    }
} Main public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	int h = sc.nextInt();
	int n = sc.nextInt();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "No");
    } main {
	Scanner sc = new Scanner(System.in);
	int h = sc.nextInt();
	int n = sc.nextInt();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "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 int count = 0; count 0 for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	} int i=0; int i=0; i 0 i<n i n i++ i++ i {
	    count += sc.nextInt();
	    if (count >= h) break;
	} {
	    count += sc.nextInt();
	    if (count >= h) break;
	} count += sc.nextInt() count sc.nextInt() sc.nextInt sc if (count >= h) break; count >= h count h break; System.out.print(count >= h ? "Yes" : "No") System.out.print System.out System System.out count >= h ? "Yes" : "No" count >= h count h "Yes" "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();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "No");
    }
} public class Main {
    public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	int h = sc.nextInt();
	int n = sc.nextInt();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "No");
    }
} Main
import 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();
	int count = 0;
	for (int i=0; i<n; i++) {
	    count += sc.nextInt();
	    if (count >= h) break;
	}
	System.out.print(count >= h ? "Yes" : "No");
    }
}
