Phonebook

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

namespace Phonebook
{
    class Phonebook
    {
        static void Main(string[] args)
        {
            Dictionary<string, string> phonebook = new Dictionary<string, string>();

            string inputLine = Console.ReadLine();
            while (inputLine != "END")
            {
                string[] commandInfo = inputLine.Split().ToArray();

                if (commandInfo[0] == "A")
                {
                    string nameToAdd = commandInfo[1];
                    string phoneNumberToAdd = commandInfo[2];

                    phonebook[nameToAdd] = phoneNumberToAdd;
                }
                else if (commandInfo[0] == "S")
                {
                    string nameToSearch = commandInfo[1];

                    if (!phonebook.ContainsKey(nameToSearch))
                    {
                        Console.WriteLine($"Contact {nameToSearch} does not exist.");

                        inputLine = Console.ReadLine();

                        continue;
                    }

                    Console.WriteLine($"{nameToSearch} -> {phonebook[nameToSearch]}");
                }

                inputLine = Console.ReadLine();
            }
        }
    }
}