diff --git a/demux14.txt b/demux14.txt
new file mode 100644
index 0000000..231682d
--- /dev/null
+++ b/demux14.txt
@@ -0,0 +1,16 @@
+#/\--- Insert demux21 here
+DEF DEMUX14
+    PORT IN A
+    PORT IN S<1:0>
+    PORT OUT Z0
+    PORT OUT Z1
+    PORT OUT Z2
+    PORT OUT Z3
+
+    NET Y0
+    NET Y1
+
+    INST DEMUX1 DEMUX12 A S<1> Y0 Y1
+    INST DEMUX2 DEMUX12 Y0 S<0> Z0 Z1
+    INST DEMUX3 DEMUX12 Y1 S<0> Z2 Z3
+ENDDEF