Asd

namespace MapDistricts
{
    using System;
    using System.Collections.Generic;
    using System.Linq;

    public class Program
    {
        public static void Main(string[] args)
        {
            Dictionary<string, int[]> townsAndPopulation = Console.ReadLine()
                                        .Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
                                        .Select(s =>
                                        {
                                            return new KeyValuePair<string, int>(s.Split(':')[0], int.Parse(s.Split(':')[1]));
                                        })
                                        .GroupBy(k => k.Key)
                                        .ToDictionary(key => key.Key, value => value.Select(s => s.Value).ToArray());

        }
    }
}