import java.util.*;

public class Main{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        int c = in.nextInt();
        if(a + b == c || b + c == a || a + c == b){
            System.out.println("Yes");
        }
        else {
            System.out.println("No");
        }
    }
}
