import java.util.*;
public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int[] X = new int[3];
		X[0] = sc.nextInt();
		X[1] = sc.nextInt();
		X[2] = sc.nextInt();

		Arrays.sort(X);

		if(X[0] + X[1] == X[2]){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}
}