using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ytcode {
     class Program {
          static void Main(string[] args)
          {
               int a = int.Parse(Console.ReadLine());
               int b = int.Parse(Console.ReadLine());
               int c = int.Parse(Console.ReadLine());

               if(a == b + c|b == a + c|c == a + b) {
                    Console.WriteLine("Yes");
               }
               else {
                    Console.WriteLine("No");
               }
          }
     }
}
