#include <iostream>
#include <stdio.h>
#include <string>
#include <math.h>
using namespace std;

int main(){
	int a, b, c
	cin >> a >> b >> c;
	
	if(a=b+c || b=c+a || c==a+b) printf("Yes\n");
	else printf("No\n");
	
	return 0;
}