# -*- coding: utf-8 -*-
import sys
from fractions import Fraction

p, q = map(Fraction, raw_input().split())

assert 0 <= p <= 1
assert Fraction("0.1") <= q <= 1

P0 = p * q
P1 = (1 - p) * q
P2 = p * (1 - q) * q

sys.stderr.write(str(P1) + "\n")
sys.stderr.write(str(P2) + "\n")

assert Fraction("0.00001") <= abs(P1 - P2)

if P1 < P2:
    print "YES"
else:
    print "NO"