diff --git a/src/main/java/com/adventofcode/flashk/day19/LinenLayout.java b/src/main/java/com/adventofcode/flashk/day19/LinenLayout.java
index c090d16..181d842 100644
--- a/src/main/java/com/adventofcode/flashk/day19/LinenLayout.java
+++ b/src/main/java/com/adventofcode/flashk/day19/LinenLayout.java
@@ -9,10 +9,10 @@
 
 public class LinenLayout {
 
-    private List<String> patterns;
-    private List<String> designs;
+    private final List<String> patterns;
+    private final List<String> designs;
 
-    private Map<String,Boolean> memo = new HashMap<>();
+    private final Map<String,Boolean> memo = new HashMap<>();
 
     public LinenLayout(List<String> inputs) {
         patterns = Arrays.stream(inputs.getFirst().replace(StringUtils.SPACE, StringUtils.EMPTY).split(","))
diff --git a/src/main/java/com/adventofcode/flashk/day19/LinenLayout2.java b/src/main/java/com/adventofcode/flashk/day19/LinenLayout2.java
index 3067cb1..586253e 100644
--- a/src/main/java/com/adventofcode/flashk/day19/LinenLayout2.java
+++ b/src/main/java/com/adventofcode/flashk/day19/LinenLayout2.java
@@ -9,10 +9,10 @@
 
 public class LinenLayout2 {
 
-    private List<String> patterns;
-    private List<String> designs;
+    private final List<String> patterns;
+    private final List<String> designs;
 
-    private Map<MemoState,Long> memo = new HashMap<>();
+    private final Map<MemoState,Long> memo = new HashMap<>();
 
     public LinenLayout2(List<String> inputs) {
         patterns = Arrays.stream(inputs.getFirst().replace(StringUtils.SPACE, StringUtils.EMPTY).split(","))
@@ -27,7 +27,6 @@ public long solveB() {
         long result = 0;
         for(String design : designs) {
             result += count(design, StringUtils.EMPTY);
-            memo.clear();
         }
         return result;
     }
diff --git a/src/test/java/com/adventofcode/flashk/day19/Day19Test.java b/src/test/java/com/adventofcode/flashk/day19/Day19Test.java
index a820844..99f7906 100644
--- a/src/test/java/com/adventofcode/flashk/day19/Day19Test.java
+++ b/src/test/java/com/adventofcode/flashk/day19/Day19Test.java
@@ -21,7 +21,6 @@
 
 @DisplayName(TestDisplayName.DAY_19)
 @TestMethodOrder(OrderAnnotation.class)
-@Disabled // TODO Remove comment when implemented
 public class Day19Test extends PuzzleTest {
 
 	private static final String INPUT_FOLDER = TestFolder.DAY_19;