import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        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||c+b==a)
            System.out.println("Yes");
        else
            System.out.println("No");
    }
}
