dict 7

using System;
using System.Collections.Generic;
using System.Linq;


class Program
{
    static void Main()
    {
        var population = new Dictionary<string, Dictionary<string, long>>();

        string input = Console.ReadLine();

        while (input != "report")
        {
            string[] tokens = input.Split(new[] {'|'}).ToArray();
            string city = tokens[0];
            string country = tokens[1];
            long populations = long.Parse(tokens[2]);
            if (!population.ContainsKey(country))
            {
                population.Add(country, new Dictionary<string, long>());
                population[country].Add(city, populations);
            }
            else
            {
                if (!population[country].ContainsKey(city))
                {
                    population[country].Add(city, populations);
                }
            }

            input = Console.ReadLine();

        }



        foreach (var countries in population
            .OrderByDescending(x=>x.Value.Values.Sum()))
        {
            Console.WriteLine($"{countries.Key}: ");
            foreach (var cities in countries.Value.OrderByDescending(x=>x.Value))
            {
                Console.WriteLine($"=>{cities.Key}: {cities.Value} ");
            }
        }

    }
}