#include <cmath>
#include <cstdio>

#include <stack>
#include <queue>
#include <algorithm>
#include <iostream>
#include <vector>
#include <map>
#include <numeric>
#include <string>
#include <array>
#include <fstream>

#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define all(x) x.begin(), x.end()

using namespace std;
typedef long long int ll;

int main(istream &input=cin, ostream &output=cout) {
  ll a, b, c;
  input >> a >> b >> c;
  if(a+b ==c or a+c == b or b+c == a){
    output << "Yes" << endl;
  }else{
    output << "No" << endl;
  }

  return 0;
}