import java.util.Scanner;
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");
        }
    }
}
