using System;

using System.Collections.Generic;       

public class Program

{

    public static void Main()

    {

    var city = new Dictionary<string, Dictionary<string, int>>();

 city ["Sofia"] = new Dictionary<string, int>

     {

    {"The Mall", 5},

    {"Vasil Levski stadium", 6}

     };

        city ["Plovdiv"] = new Dictionary<string, int>

{

    {"Amfiteatar", 8},

    {"Mall", 4}

     };

foreach (var student in city)

{

    Console.WriteLine($"city");

    foreach (var subject in student.Value)

    {

        Console.WriteLine($" {subject.Key}: {subject.Value}");

   }

 }

        }

    }