diff --git a/codewars/Aufgabe2.py b/codewars/Aufgabe2.py
index 8f0273b..8a045c4 100644
--- a/codewars/Aufgabe2.py
+++ b/codewars/Aufgabe2.py
@@ -9,4 +9,5 @@ class Ship:
         # Jedes Besatzungsmitglied erhöht den Tiefgang um 1,5 Einheiten.
         # Ein Schiff ist lohnenswert, wenn der verbleibende Tiefgang nach Abzug
         # des Gewichts der Besatzung mehr als 20 Einheiten beträgt.
-        return (self.draft - (self.crew * 1.5)) > 20
\ No newline at end of file
+        return (self.draft - (self.crew * 1.5)) > 20
+    
\ No newline at end of file
diff --git a/codewars/Interactive Dictionary.py b/codewars/Interactive Dictionary.py
new file mode 100644
index 0000000..c59bd75
--- /dev/null
+++ b/codewars/Interactive Dictionary.py	
@@ -0,0 +1,12 @@
+class Dictionary:
+    def __init__(self):
+        self.words = {}
+
+    def newentry(self, word, definition):
+        self.words[word] = definition
+
+    def look(self, key):
+        if key in self.words:
+            return self.words[key]
+        else:
+            return f"Can't find entry for {key}"
\ No newline at end of file
diff --git a/codewars/building blocks.py b/codewars/building blocks.py
index e69de29..1c6ab0d 100644
--- a/codewars/building blocks.py	
+++ b/codewars/building blocks.py	
@@ -0,0 +1,15 @@
+class Block:
+    def __init__(self, dims):
+        self.width = dims[0]
+        self.length = dims[1]
+        self.height = dims[2]
+    def get_width(self):
+        return self.width
+    def get_length(self):
+        return self.length
+    def get_height(self):
+        return self.height
+    def get_volume(self):
+        return self.width * self.length * self.height 
+    def get_surface_area(self):
+        return 2 * (self.width * self.length + self.width * self.height + self.length * self.height)
\ No newline at end of file
diff --git a/src/solution.py b/src/solution.py
index 782cfce..2033fb2 100644
--- a/src/solution.py
+++ b/src/solution.py
@@ -3,3 +3,4 @@ def even_or_odd(number):
         return "Even"
     else:
         return "Odd"
+