#include <iostream>
#include <string>
#include "Hash.hpp"

int main() {
   Hash<std::string, unsigned int> hash(32);
   std::string town; unsigned int population;
   while (std::cin >> town && std::cin >> population) {
      if (!hash.insert(std::make_pair(town, population))) {
	 std::cerr << "insertion of " << town << " failed." << std::endl;
      }
   }
   hash.for_each([](auto& object) {
      std::cout << object.first << " " << object.second << std::endl;
   });
}