import java.util.*;
 
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.print("Yes");
      }else{
        System.out.print("No");
      }
      
    }
}