import Data.Char

main = do
  input_line <- getLine
  let input = words input_line
  let a = read (input!!0) :: Int
  let b = read (input!!1) :: Int
  let c = read (input!!2) :: Int
  putStrLn $ if a + b == c || a + c == b || b + c == a
      then "Yes" else "No"