import java.util.*;
public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int a =sc.nextInt();
		int b =sc.nextInt();
		int c =sc.nextInt();
		if(a==b+c){
		System.out.println("Yes");
		}else if(b==a+c)System.out.println("Yes");
		else if(c==a+b)System.out.println("Yes");
		else System.out.println("No");
	}
}