#include <bits/stdc++.h>
#define repd(i,a,b) for (int i=(a);i<(b);i++)
#define rep(i,n) repd(i,0,n)
typedef long long ll;
using namespace std;
const int MOD = 1000000007;
const int INF = 1010000000;
const double EPS = 1e-10;

int h,w,x;
char s[1000][1000];
bool visited [1000][1000];
pair<int,int> start,goal;
queue<pair<int,pair<int,int>>> q;
vector<pair<int,int>> ino;

int main(){
  //int a,b,c,d;cin>>a>>b>>c>>d;
  int a[3];cin>>a[0]>>a[1]>>a[2];sort(a,3);
  if(a[2]==a[1]+a[0]){
    cout<<"Yes";
  }else{
    cout<<"No";
  }
}
