MixedPhones

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _03_MixedPhones
{
    class MixedPhones
    {
        static void Main(string[] args)
        {
            var result = new SortedDictionary<string, long>();
            string inputStr = Console.ReadLine();

            while (inputStr != "Over")
            {
                var input = inputStr
                    .Split(
                    new[] {' '},
                    StringSplitOptions.RemoveEmptyEntries);

                long phoneNumber;
                long.TryParse(input[0], out phoneNumber);

                if (phoneNumber != 0)
                {
                    result.Add(input[2].Trim(), phoneNumber);
                }
                else
                {
                    result.Add(input[0].Trim(), long.Parse(input[2]));
                }

                inputStr = Console.ReadLine();
            }
            foreach (var kvp in result.Keys)
            {
                Console.WriteLine($"{kvp} -> {result[kvp]}");

            }

        }
    }
}