import java.util.*;

public class Main {

	public static ArrayList<ArrayList<String>> groupShiftedStrings(String[] strs) {
		
		//make difference between characters as key and group strings
		HashMap<String , ArrayList<String>> map = new HashMap<>();
		
		for(String temp : strs){
		   
		    char arr[] = temp.toCharArray();
		    
//if only single character its key will be blank or ""
		        String val = "";
		        for(int i =1 ;i < arr.length ; i++){
		            int value = (arr[i] - arr[i-1]);
		            
		            //handle if value comes out to be negative eg: y-a 
		            if(value < 0 )
		            value += 26 ;
		            
		            val += value + "#";
		        }
		        val += "."; // for one character it will be "."
		        
		        ArrayList<String> list = map.getOrDefault(val,new ArrayList<>());
		        list.add(temp);
		        map.put(val , list);
		    
		}

		//making an answer arralist and traversing the hashmap and storing the answers
		ArrayList<ArrayList<String>> ans = new ArrayList<>();
		
		for(String temp : map.keySet()){
		    ans.add(map.get(temp));
		}
		return ans;
	}

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		String[] arr = new String[N];
		for (int i = 0; i < N; i++) {
			arr[i] = sc.next();
		}
		ArrayList<ArrayList<String>> shiftedGroup = groupShiftedStrings(arr);
		for (ArrayList<String> lst : shiftedGroup) {
			Collections.sort(lst);
		}
		shiftedGroup.sort(new ListComparator());
		display(shiftedGroup);
	}

	// it is used to make the result unique
	static class ListComparator implements Comparator<List<String>> {
		@Override
		public int compare(List<String> l1, List<String> l2) {
			if (l1.size() != l2.size()) {
				return l2.size() - l1.size();
			}

			String l1str = l1.get(0);
			String l2str = l2.get(0);
			return l1str.compareTo(l2str);

		}
	}

	public static void display(ArrayList<ArrayList<String>> list) {
		for (int i = 0; i < list.size(); i++) {
			ArrayList<String> currList = list.get(i);
			for (int j = 0; j < currList.size(); j++) {
				System.out.print(currList.get(j) + " ");
			}
			System.out.println();
		}
	}

}