#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i,n)for (int i = 0; i < int(n); ++i)
#define rrep(i,n)for (int i = int(n)-1; i >= 0; --i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<class T> void chmax(T& a, const T& b) {a = max(a, b);}
template<class T> void chmin(T& a, const T& b) {a = min(a, b);}
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;

#include<boost/multiprecision/cpp_int.hpp>
using ll = boost::multiprecision::cpp_int;
using VL = vector<ll>;
using VVL = vector<VL>;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    int m = n * (n - 1) / 2;
    VI a(m), b(m);
    VL c(m);
    rep(i, m) cin >> a[i] >> b[i] >> c[i], a[i]--, b[i]--;
    VI ord(m);
    iota(all(ord), 0);
    sort(all(ord), [&](const ll& x, const ll& y) {return x < y;});
    dsu d(n);
    for(int i: ord) {
        d.merge(a[i], b[i]);
        if (d.size(a[i]) == n) {
            cout << c[i] << '\n';
            return 0;
        }
    }
}