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");
		}
	}

}
