diff --git a/day23.py b/day23.py
index 06ace3c..95a25b7 100644
--- a/day23.py
+++ b/day23.py
@@ -52,10 +52,12 @@ class Day(AOCDay):
         [
             (25, "input23_test_small"),
             (110, "input23_test"),
+            (4070, "input23_dennis"),
             (3766, "input23"),
         ],
         [
             (20, "input23_test"),
+            (881, "input23_dennis"),
             (954, "input23"),
         ]
     ]
diff --git a/inputs/input23_dennis b/inputs/input23_dennis
new file mode 100644
index 0000000..1e30b33
--- /dev/null
+++ b/inputs/input23_dennis
@@ -0,0 +1,72 @@
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