import java.io.*;
import java.util.*;

class Main159 {
	
	public static void out (Object out) {
		System.out.println(out);
	}
	
	public static void main (String[] args) throws IOException {
		BufferedReader br = 
			new BufferedReader(new InputStreamReader(System.in));
		
		String[] line = br.readLine().split(" ");
		double p = Double.parseDouble(line[0]);
		double q = Double.parseDouble(line[1]);
		
		System.out.println(1 - p < p * (1 - q) ? "YES" : "NO");
		
	}
}