import java.util.Scanner;

public class Main{

    public static void main(String args[]){
		solve();
    }
	
	private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= H ? "Yes" : "No");
	}
} import java.util.Scanner; Scanner java.util public class Main{

    public static void main(String args[]){
		solve();
    }
	
	private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= H ? "Yes" : "No");
	}
} Main public static void main(String args[]){
		solve();
    } main {
		solve();
    } solve() solve String args[] args private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= H ? "Yes" : "No");
	} solve {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= 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 sum = 0; sum 0 for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			sum += sc.nextInt();
			if(sum > H)break;
		} {
			sum += sc.nextInt();
			if(sum > H)break;
		} sum += sc.nextInt() sum sc.nextInt() sc.nextInt sc if(sum > H)break; sum > H sum H break; System.out.println(sum >= H ? "Yes" : "No") System.out.println System.out System System.out sum >= H ? "Yes" : "No" sum >= H sum H "Yes" "No" public class Main{

    public static void main(String args[]){
		solve();
    }
	
	private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= H ? "Yes" : "No");
	}
} public class Main{

    public static void main(String args[]){
		solve();
    }
	
	private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= H ? "Yes" : "No");
	}
} Main
import java.util.Scanner;

public class Main{

    public static void main(String args[]){
		solve();
    }
	
	private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int sum = 0;
		for(int i = 0; i < N; i++){
			sum += sc.nextInt();
			if(sum > H)break;
		}
		System.out.println(sum >= H ? "Yes" : "No");
	}
}