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){
			System.out.print("Yes");
		}
		else if(b == a + c){
			System.out.print("Yes");
		}
		else if(c == a + b){
			System.out.print("Yes");
		}
		else{
			System.out.print("No");
		}

	}

}
