import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
  int a = sc.nextInt();
  int b = sc.nextInt();
  int c = sc.nextInt();
  if(a+b == c||b+c == a||c+a == b)
    System.out.println("Yes");
  else System.out.println("No");
}
}
