diff --git a/3456.txt b/3456.txt
new file mode 100644
index 0000000..0446933
--- /dev/null
+++ b/3456.txt
@@ -0,0 +1,17 @@
+s
+s
+s
+s
+s
+s
+d
+d
+d
+
+d
+d
+
+s
+s
+s
+s