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

#define IOS ios::sync_with_stdio(0); cin.tie(0);
#define endl "\n"
#define int long long

int32_t main()
{
	IOS;

	int a, b, c;
	cin >> a >> b >> c;

	if (a * a + b * b < c * c) {
		cout << "Yes";
	} else {
		cout << "No";
	}

	return 0;
}
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl '\n';
const ll nmax = 1000000007;

int main(){

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    ll a, b, c;
    cin >> a >> b >> c;

    ll ans = 0;
    if(a == b){
        ans = c;
    }else if(b == c){
        ans = a;
    }else if(c == a){
        ans = b;
    }

    cout << ans << endl;

    return 0;
}