parseInt x = read x :: Int

solve :: [Int] -> String
solve input =
    case input of [a, b, c] -> if a + b == c || b + c == a || c + a == b then "Yes"
                               else "No"
                  _         -> "Invalid input"

main :: IO()
main = do
    line <- getLine
    let input = Prelude.map parseInt . words $ line
    putStrLn $ solve input
