#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include //#include using namespace std; //using namespace atcoder; #define repr(i, a, b) for (int i = (int)(a); i < (int)(b); i++) #define rep(i, n) repr(i, 0, n) #define INF 2e9 //#define MOD 1000000007 #define MOD 998244353 #define LINF (long long)4e18 #define jck 3.141592 #define PI acos(-1.0) const double EPS = 1e-10; using ll = long long; using Pi = pair; using Pl = pair; //using mint = modint1000000007; int dh[] = {-1,0,1,0}; int dw[] = {0,1,0,-1}; int main(){ int n; cin >> n; vector ok(n); string ans = ""; rep(i,n*(n-1)/2){ int a,b; cin >> a >> b; a--; b--; string c; cin >> c; ok[a] = true; ok[b] = true; auto f = all_of(ok.begin(),ok.end(),[](auto x){return x == true;}); if(f){ if(ans == "") ans = c; } } cout << ans << endl; }