using System;
using System.Collections.Generic;
using System.Linq;

namespace ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            var abc = Console.ReadLine().Split();
            var a = int.Parse(abc[0]);
            var b = int.Parse(abc[1]);
            var c = int.Parse(abc[2]);

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