import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;

public class Main_1002 
{
    public static char map(char Char)
    {
        switch(Char)
        {
        case 'A':
        case 'B':
        case 'C': return '2';
        
        case 'D':
        case 'E':
        case 'F': return '3';
        
        case 'G':
        case 'H':
        case 'I': return '4';
        
        case 'J':
        case 'K':
        case 'L': return '5';
        
        case 'M':
        case 'N':
        case 'O': return '6';
        
        case 'P':
        case 'R':
        case 'S': return '7';
        
        case 'T':
        case 'U':
        case 'V': return '8';
        
        case 'W':
        case 'X':
        case 'Y': return '9';
        
        case '-': return ' ';
        
        default : return Char;
        }
    }
    public static String convert(String num)
    {
        
        char[] NUM = num.toCharArray();
        int length = NUM.length;
        
        List<Character> numbers = new ArrayList<Character>();
        char digit;
        for(int i = 0; i < length; i++)
        {
            digit = map(NUM[i]);
            if(digit != ' ')
                numbers.add(digit);
        }
        

        num = "";
        for(int i = 0; i < numbers.size(); i++)
        {
            num += numbers.get(i);
            if(i == 2)
                num += "-";
        }

        return num;        
    }
    
    public static void main(String[] args) 
    {
        Scanner sc = new Scanner(System.in);
        ArrayList<String> list = new ArrayList<String>();
        Map<String, Integer> map = new HashMap<String, Integer>();
        String num = null;
        int freq;
        
        int n = sc.nextInt();
        for(int i = 0; i < n ; i++)
        {
            num = convert(sc.next());
            if(!list.contains(num))
                list.add(num);
            freq = map.get(num) == null ? 0 : map.get(num);
            map.put(num, freq == 0 ? 1 : ++freq);            
        }
        
        Collections.sort(list);
        
        boolean flag = false;
        for(int i = 0; i < list.size(); i++)
        {
            num = list.get(i);
            freq = map.get(num);
            if(freq != 1)
            {
                if(flag == false)
                    System.out.print(num + " " + freq);
                else
                    System.out.print("\n" + num + " " + freq);
                flag = true;
            }
        }
        if(flag == false)
            System.out.print("No duplicates."); 
    }
}