import java.util.Scanner;

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");
    }
}