180423_1181_단어 정렬

	//https://www.acmicpc.net/problem/1181 #include <iostream>
	#include <vector>
	#include <string>
	#include <algorithm>
	using namespace std;
	bool cmp(string a, string b){
	if(a.size() < b.size()) return 1;
	if(a.size() == b.size()){
	return a.compare(b)<0 ? 1 : 0;
	}
	return 0;
	}
	int main(){
	int n;
	cin >> n;
	vector<string> v;
	for(int i=0; i<n; i++){
	string s;
	cin >> s;
	v.push_back(s);
	}
	sort(v.begin(), v.end(), cmp);
	cout << v[0]<<endl;
	for(int i=1; i<n; i++){
	if(v[i]==v[i-1]) continue;
	cout << v[i] <<endl;
	}
	return 0;
	}