import java.util.Scanner;

public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if(a==b+c||a+b==c||a+c==b){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}
}