main = mapM_ (print . solve . map read . words) . lines =<< getContents
solve [a,b]
  |0<a = "Positive"
  |a<=0 && 0<=b = "Zero"
  |b<0 && (b-a)`mod`2==0 = "Negative"
  |b<0 && (b-a)`mod`2==1 = "Positive"