import java.util.*;

public class Main{
	public static void main(String arg[]){
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No");
	}
} import java.util.*; util.* java public class Main{
	public static void main(String arg[]){
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No");
	}
} Main public static void main(String arg[]){
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No");
	} main {
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			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 b=sc.nextInt(); b sc.nextInt() sc.nextInt sc int sum = 0; sum 0 for(int i=0;i<b;i++)
			sum+=sc.nextInt(); int i=0; int i=0; i 0 i<b i b i++ i++ i sum+=sc.nextInt(); sum+=sc.nextInt() sum sc.nextInt() sc.nextInt sc if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No"); sum >= h sum h System.out.println("Yes") System.out.println System.out System System.out "Yes" System.out.println("No") System.out.println System.out System System.out "No" String arg[] arg public class Main{
	public static void main(String arg[]){
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No");
	}
} public class Main{
	public static void main(String arg[]){
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No");
	}
} Main
import java.util.*;

public class Main{
	public static void main(String arg[]){
		Scanner sc=new Scanner(System.in);
		int h=sc.nextInt();
		int b=sc.nextInt();
		int sum = 0;
		for(int i=0;i<b;i++)
			sum+=sc.nextInt();
		if(sum >= h)
			System.out.println("Yes");
		else 
			System.out.println("No");
	}
}