#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
using namespace std;

void print(string const s){
    cout << s << endl;
}

bool compare(string s1, string s2){
    if (s1.size() != s2.size())//长度不一样,长度短的更小
        return s1.size() < s2.size();
    else//两个字符串长度一样
        return s1 < s2;
}

int main(){
    int n;
    while (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(), compare);
        for_each(v.begin(), v.end(), print);
    }
    return 0;
}