#include <algorithm>
#include <map>
#include <set>
#include <iostream>
#include <string>
#include <sstream>

using namespace std::literals;

int main()
{

    std::vector<std::vector<std::string>> lines { };
    std::map<std::string, unsigned> frequency { };

    // read each line
    std::string tmp;
    while (std::getline(std::cin, tmp))
    {
	// read each word
	std::istringstream iss { tmp };

	std::vector<std::string> line { };
	
	std::string word;
	while (iss >> word)
	{
	    line.push_back(word);
	    ++frequency[word];
	}

	lines.push_back(std::move(line));
    }
    
    // find the 3 most common words
    std::vector<std::pair<std::string, unsigned>> common(3);
    std::partial_sort_copy(frequency.begin(), frequency.end(),
			   common.begin(), common.end(),
			   [](auto&& lhs, auto&& rhs)
			   {
			       return lhs.second > rhs.second;
			   });
    
    for (std::vector<std::string>& line : lines)
    {
	for (auto&& [word, count] : common)
	{
	    std::replace(line.begin(), line.end(), word, "REPLACED"s);
	}
    }

    std::cout << "== Replaced text: " << std::endl;
    for (std::vector<std::string> const& line : lines)
    {
	for (std::string const& word : line)
	{
	    std::cout << word << " ";
	}
	std::cout << std::endl;
    }
    
}