function Main(input) {
  input = input.split("\n");
  var n = input[0].split(" ");
  var a = parseInt(n[0]);
  var b = parseInt(n[1]);
  var c = parseInt(n[2]);
  var ans = "No";
  if(a==b+c || b==a+c || c==a+b){
    ans = "Yes";
  }

  console.log('%s', ans);
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));