#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int a,b,c;
	cin>>a>>b>>c;
	if(a==b)
	    cout<<c;
	else if(a==c)
	    cout<<b;
	else if(b==c)
	    cout<<a;
	else
	    cout<<"0";
	return 0;
}

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

int main() {
  int A,B,C;
  cin >> A >> B >>C;
  if(A*A+B*B<C*C) printf("Yes");
  else printf("No");
}
