import Control.Monad
import Data.Bool
first f t=(f$fst t,snd t)
second f t=(fst t,f$snd t)
dupe x=(x,x)
main=print.bool"No""Yes".uncurry(&&).first([2019,4,30]>=).second([1989,1,8]<=).dupe.map read.words=<<getLine