import Control.Monad
import Data.Maybe (fromJust)
import Data.List
import Data.Char

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

main :: IO ()
main = do
    [a,b,c] <- map (read) . words <$> getLine :: IO [Int]
    putStrLn $ solve a b c
