Clean solution

Program.cs

@@ -1,2 +1,24 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World!");
+class Program {
+    static void Main() {
+        // get all the words form the text file and put them into a hasset
+        var words = new List<string>(File.ReadAllLines("input.txt"));
+        var wordSet = new HashSet<string>(words);
+
+        // Find all combos that forn a 6 letter word and make sure we dont have duplicates
+        var seenCombinations = new HashSet<string>();
+        var combos = words.SelectMany(
+                word1 => words.Where(word2 => word1 != word2),
+                (word1, word2) => new { word1, word2, combinedWord = word1 + word2 }
+        ).Where(
+            x => x.combinedWord.Length == 6 && wordSet.Contains(x.combinedWord)
+        ).Where(
+            x => seenCombinations.Add($"{x.word1}+{x.word2}")
+        ).Select(
+            x => $"{x.word1}+{x.word2}={x.combinedWord}"
+        ).ToList();
+
+        // echo out all found words
+        combos.ForEach(Console.WriteLine);
+
+    }
+}

obj/Debug/net8.0/6letterwordexercise.AssemblyInfo.cs

@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("6letterwordexercise")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+2ee45d0c33abdc2258987bbae591edb100ebb81b")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+7a30bacb68910559e2c2bc33337d57c1364a1b60")]
 [assembly: System.Reflection.AssemblyProductAttribute("6letterwordexercise")]
 [assembly: System.Reflection.AssemblyTitleAttribute("6letterwordexercise")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]

obj/Debug/net8.0/6letterwordexercise.AssemblyInfoInputs.cache

@@ -1 +1 @@
-11bb087ea0f446bb0d874c8a6517161613518f7e65c34da03edbfc9d8b21c232
+38d39cd6b0bba17b8e33dc8144efa9e3646f6745189f6a226aa41ca2ccf216ba