/*

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*/

/**

*

* @author Dell

*/

import java.util.*;

import java.io.*;

public class ArbazSolution {

public static void main(String[] args) throws IOException{

HashMap<String , ArrayList<String>> hts = new HashMap<String , ArrayList<String>>();

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

// adding elements to the list , depends upon how many records you have

// suppose you have 2 records i.e 2 rows * 2 coloumns

// like city , user

for(int i = 0 ; i < 5 ; i++){ //put the greater to i index equal to number of records you want to enter ;

// every new city name or if existing then we will update in the code below

System.out.println("\nEnter the city name :: \n");

String city = br.readLine();

String lst = "";

ArrayList<String> names = new ArrayList<>();

//for(int j = 0 ; j < 2 ; j++){ // for records

lst = "";

System.out.println("\nEnter the names to insert in the city");

lst = br.readLine();

names.add(lst); // we will add the name in the list here

// }

// now after 2 names entered we will append the city , Arraylist of names to hashMap

// now to check if the key city exists in the table or not

if(hts.containsKey(city)){

hts.get(city).add(lst);

}

// if not existing then we add the new record to the hashmap

else{

hts.put(city, names);

}

}

//printing the values in the hashtable

System.out.println("CiTY :: Values");

for(Map.Entry m : hts.entrySet()){

System.out.print(m.getKey()+ " " +m.getValue() + "\n");

}

}

}