static void Main(string[] args)
{
string[] words = new string[] { "practice", "makes", "coding", "perfect", "makes" };
words ws = new words(words);
var result = ws.wordList;
Console.WriteLine(string.Join(',', result));
string word1 = "practice";
string word2 = "coding";
var num = ws.shortestDistance(word1, word2);
Console.WriteLine(num);
}