diff --git a/projects/01/DMux.hdl b/projects/01/DMux.hdl
index e4fbb7e..68d5376 100644
--- a/projects/01/DMux.hdl
+++ b/projects/01/DMux.hdl
@@ -14,5 +14,7 @@ CHIP DMux {
     OUT a, b;
 
     PARTS:
-    // Put your code here:
+    And(a=in, b=sel, out=b);
+    Not(in=sel, out=nsel);
+    And(a=in, b=nsel, out=a);
 }
diff --git a/projects/01/DMux.out b/projects/01/DMux.out
new file mode 100644
index 0000000..9a92ec0
--- /dev/null
+++ b/projects/01/DMux.out
@@ -0,0 +1,5 @@
+|  in   |  sel  |   a   |   b   |
+|   0   |   0   |   0   |   0   |
+|   0   |   1   |   0   |   0   |
+|   1   |   0   |   1   |   0   |
+|   1   |   1   |   0   |   1   |