module Main where

import qualified Data.Vector as Vector
import Data.List

main :: IO ()
main =
    putStrLn =<< (\a -> if a then "Yes" else "No") <$> solve <$> getInt


getInt :: IO [Double]
getInt = map read <$> words <$> getLine

solve :: [Double] -> Bool
solve [a, b, c] = (sqrt a) + (sqrt b) < (sqrt c)
