import java.util.*;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		
		if(a+b==c||a+c==b||b+c==a){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}

}
