--{-# LANGUAGE Safe #-}
{-# LANGUAGE PatternGuards #-}
import qualified Data.Text as T
import qualified Data.Text.IO as TI
import qualified Data.List as L
import Data.Monoid
import Data.Maybe
import Control.Applicative
import Debug.Trace
import Data.Char


(!-!)::[a]->Int->Maybe a
[] 		!-! _ = Nothing
(x:xs) 	!-! 0 = Just x
(x:xs) 	!-! n = xs !-! (n-1)

(<$~>)::Functor f => f a -> (a -> b) -> f b
(<$~>)=flip (<$>)

maybeRead s
	|[(x,"")]<-(reads s)=Just x
	|otherwise = Nothing
	
getLines::Int->IO T.Text
getLines 1 = TI.getLine 
getLines n = TI.getLine <> return (T.pack " ") <> (getLines$n-1)
	
run main_f n= 
	getLines n			<$~>
	T.split (==' ')		<$~>
	fmap T.unpack		<$~>
	main_f				<$~>
	fromMaybe "error"	>>=
	putStrLn
{-
1   2   3   4   5   6
12  11  10  9   8   7
13  14  15  16  17  18
24  23  22  21  20  19
-}
getClass::Int->Int->Int
getClass m v =
	let
		tmp = v `mod` (2 * m)::Int
		r=if tmp > m then 2*m-tmp+1 else tmp
	in if r==0 then r+1 else r

main_ list = do
	let get n = maybeRead=<<(list !-! n)::Maybe Int
	m<-get 1
	x<-get 2
	y<-get 3
	return$if (getClass m x)==(getClass m y) then "YES" else "NO"
	
format::Show a=>String->[a]->String
format str list = format_ str list False
	where
		format_::Show a=>String ->[a]->Bool->String
		format_ [] _ _ = ""
		format_ (x:xs) list False
			|x=='%'=format_ xs list True
			|otherwise = x:format_ xs list False
		format_ (x:xs) list True
			|x=='%' = '%':format_ xs list False
			|isDigit x = show (list !! (ord x-ord '0'))++format_ xs list False
	
main = run main_ 2