Population Counter

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

namespace TryOut
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();

            Dictionary<string, Dictionary<string, long>> countries = new Dictionary<string, Dictionary<string, long>>();
            Dictionary<string, long> totalPopulation = new Dictionary<string, long>();

            while (input != "report")
            {
                string[] data = input.Split('|');

                string country = data[1];

                if (countries.ContainsKey(country) == false)
                {
                    countries.Add(country, new Dictionary<string, long>());
                }

                Dictionary<string, long> cities = countries[country];

                string city = data[0];
                long population = long.Parse(data[2]);

                cities.Add(city, population);

                if (totalPopulation.ContainsKey(country) == false)
                {
                    totalPopulation.Add(country, population);
                }
                else
                {
                    totalPopulation[country] += population;
                }

                totalPopulation = totalPopulation.OrderByDescending(c => c.Value).ToDictionary(c => c.Key, c => c.Value);

                input = Console.ReadLine();
            }

            foreach (var country in totalPopulation)
            {
                Console.WriteLine($"{country.Key} (total population: {country.Value})");

                Dictionary<string, long> cities = countries[country.Key];
                cities = cities.OrderByDescending(c => c.Value).ToDictionary(c => c.Key, c => c.Value);

                foreach (var city in cities)
                {
                    Console.WriteLine($"=>{city.Key}: {city.Value}");
                }
            }
        }
    }
}