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");
    }
}