// https://szkopul.edu.pl/problemset/problem/Aq-3LEQBYOdbiqQXvn3TJ0Id/site/?key=statement

#include <bits/stdc++.h>

// using namespace std;

// #define GARY_DBG
#define GARY_LIB

#define int long long

constexpr int sizik = 1000 * 1001;

#define ar std::array
#define pr std::pair
#define vec std::vector

typedef vec<vec<int>> _kra;

void solve() {
    std::map<std::string, std::set<std::string>> e;

    int n;
    std::cin >> n;

    for (int i = 0; i < n; i++) {
        std::string s;
        std::cin >> s;

        std::string s1 = s;
        std::sort(s1.begin(), s1.end());

        e[s1].insert(s);
    }

    std::vector<std::string> rep;
    for (const auto& [a, b] : e) {
        rep.push_back(*b.begin());
    }
    std::sort(rep.begin(), rep.end());

    for (const auto& a : rep) {
        std::string s1 = a;
        std::sort(s1.begin(), s1.end());
        for (const auto& b : e[s1]) {
            std::cout << b << " ";
        }
        std::cout << '\n';
    }
}

int32_t main() {
#ifndef GARY_DBG
    std::ios_base::sync_with_stdio(0);
    std::cin.tie(0);
    std::cout.tie(0);
#endif

    int t = 1;
    // std::cin >> t;

    for (; t > 0; t--) {
        solve();
    }

    return 0;
}