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||a+c==b||b+c==a)System.out.println("Yes");
   else System.out.println("No");
 }
}