import java.util.*;
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||b+c==a||c+a==b){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
		sc.close();
	}
}
