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

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int nums[] = new int[3];
		nums[0] = sc.nextInt();
		nums[1] = sc.nextInt();
		nums[2] = sc.nextInt();
		Arrays.sort(nums);
		if(nums[0] + nums[1] == nums[2]) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}