#include <iostream>

#include <map>

#include <set>

#include <string>

#include <algorithm>

#include <queue>

#include <array>

static const std::string MAIN_MEMBER = "Isenbaev";

using TeamType = std::array<std::string, 3>;

using IsenbaevsNumbersType = std::map<std::string, int>;

std::istream& operator>>(std::istream& stream, TeamType& team) {

stream >> team[0] >> team[1] >> team[2];

return stream;

}

std::ostream& operator<<(std::ostream& stream, const IsenbaevsNumbersType& isenbaevs_numbers) {

for (const auto&[member, number]: isenbaevs_numbers) {

stream << member << " ";

if (number < 0) {

stream << "undefined";

} else {

stream << number;

}

stream << std::endl;

}

return stream;

}

template<typename Key>

std::map<Key, int> compute_distance(const std::map<Key, std::set<Key>>& graph, const Key& root) {

}

int main() {

}