import java.util.Scanner;

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){
			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");
    }
	}

}
