module Main where
    import Data.List
    import Control.Monad
    
    main = do
        inputs<-getInputs
        let a = inputs!!0
        let b = inputs!!1
        putStrLn $ getAttr a b
        

    getAttr:: Integer->Integer->String
    getAttr a b 
        |(a*b <=0) = "Zero"
        |0<a = "Positive"
        |(mod (abs(a-b)) 2==0) ="Negative"
        |otherwise = "Positive"


        
    read' s = read s ::Integer

    getInputs = do
        line <- getLine
        let inputs = map read' (words line)
        return inputs

    getLines n = do
        lines <- (replicateM n getLine)
        return lines

    getGCD::Integer->Integer->Integer
    getGCD m n 
        | m < n = (getGCD n m)
        | n == 0 = m
        | otherwise = getGCD (mod m n) n

    getLCM::Integer->Integer->Integer
    getLCM m n = div (m * n) (getGCD m n)
   