
check :: Int -> Int -> Int -> String
check a b c | a + b == c = "Yes"
            | a + c == b = "Yes"
            | b + c == a = "Yes"
            | otherwise = "No"

main = do
      n <- words <$> getLine
      let [a,b,c] = map read n :: [Int]
      putStrLn(check a b c)
