03.AssociativeArray - Word Synonyms

03. Word Synonyms
Write a program, which keeps a dictionary with synonyms. The key of the dictionary will be the word. The value will be a list of all the synonyms of that word. You will be given a number n – the count of the words. After each word, you will be given a synonym, so the count of lines you have to read from the console is 2 * n. You will be receiving a word and a synonym each on a separate line like this:
• {word}
• {synonym}
If you get the same word twice, just add the new synonym to the list.
Print the words in the following format:
{word} - {synonym1, synonym2… synonymN}
Examples
Input                              Output
3
cute                               cute - adorable, charming
adorable                           smart - clever
cute
charming
smart
clever

2
task                               task - problem, assignment
problem
task
assignment
Hints
• Use a dictionary (string -> List<string>) to keep all of the synonyms.

using System;
using System.Collections.Generic;

namespace _03WordSynonyms
{
    class Program
    {
        static void Main(string[] args)
        {
            var count = int.Parse(Console.ReadLine());
            var synonymDictionary = new Dictionary<string, List<string>>();

            for (int i = 1; i <= count; i++)
            {
                var word = Console.ReadLine();
                var synonymWord = Console.ReadLine();

                if (synonymDictionary.ContainsKey(word) == false)
                {
                    var listSynonym = new List<string>();
                    synonymDictionary.Add(word, listSynonym);
                }
                synonymDictionary[word].Add(synonymWord);
            }
            foreach (var item in synonymDictionary)
            {
                Console.WriteLine($"{item.Key} - {string.Join(", ", item.Value)}");
            }
        }
    }
}