import java.util.Scanner;

public class Main{
	public static void main (String[]args){
		Scanner sc = new Scanner(System.in);
		String line = sc.nextLine();
		String[] num = line.split(" ");
		int a = Integer.parseInt(num[0]);
		int b = Integer.parseInt(num[1]);
		int c = Integer.parseInt(num[2]);

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

}
