#include <iostream>
#include <sstream>
#include <vector>
#include <string>
#include <algorithm>
#include <functional>

int main() {
	std::vector<std::string> v;
	std::string s;

	std::getline(std::cin, s);

	std::istringstream iss(s);
	while (iss >> s) {
		v.push_back(s);
	} 

	std::sort(v.begin(), v.end(),
		[](const std::string &a, const std::string &b){ return a.size() >= b.size(); }
	);

	for(auto &word : v) {
		std::cout << word << std::endl;
	}

	return 0;
}