#include<bits/stdc++.h>
using namespace std;

int main(){
	vector<int>ame(3);
	for (int i = 0; i < 3; ++i)
	{
		cin >> ame.at(i);
	}
	sort(ame.begin() ,ame.end())
	if(ame.at(0) + ame.at(1) == ame.at(2)){
		cout << "Yes" << endl;
	}else{
		cout << "No" << endl;
	}
}