#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;

int main() {
  int a,b,c;cin>>a>>b>>C;
  if(a+b==c||a+c==b||b+c==a) cout << "Yes" << endl;
  else cout << "No" << endl;
}
