#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <Windows.h>
#include <fstream>
#include <map>




int main() {

	SetConsoleCP(1251);
	SetConsoleOutputCP(1251);

	std::ifstream fin("eng-rus dictionary.txt");
	std::ofstream fout("rus-eng dictionary.txt");

	if (!fin.is_open() || !fout.is_open()) {
		std::cout << "Ошибка открытия файла" << std::endl;
	}
	else {
		std::map<std::string, std::string> dict;
		std::string word, translation;

		fin >> word >>translation;
		while (!fin.eof()) {
			dict[translation] = word;
			fin >> word >> translation;
		}

		for (const auto& a : dict) {
			fout << a.first;
			for (int i = 0; i < 20 - a.first.size(); i++) {
				fout << " ";
			}
			fout << a.second << std::endl;
		}
	
		fin.close();
		fout.close();
	}


}