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

int main() {
	int n;
	cin >> n;
	vector<string> nums(n);
	for (int i = 0; i < n; i++) {
		string tem;
		cin >> tem;
		sort(tem.begin(), tem.end());
		nums[i] = tem;
	}

	sort(nums.begin(), nums.end());
	for (auto e : nums)
		cout << e << endl;
	return 0;
}