import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Scanner scanner = new Scanner(System.in);
		int[] array = {scanner.nextInt(),scanner.nextInt(),scanner.nextInt()};
		Arrays.sort(array);
		
		System.out.println((array[0] + array[1]) == array[2]?"Yes":"No");
		scanner.close();
	}

}
