#include <iostream> #include <map> using namespace std; int main() { int n; cin >> n; string no, come, leave; map<string, string> intime, outtime; while(n --){ cin >> no >> come >> leave; intime[come] = no; outtime[leave] = no; } auto iter = intime.begin(); cout << iter->second << " "; iter = outtime.end(); iter --; cout << iter->second << endl; return 0; }