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