diff --git a/projects/01/Mux.hdl b/projects/01/Mux.hdl
index 6220f3f..78d2b09 100644
--- a/projects/01/Mux.hdl
+++ b/projects/01/Mux.hdl
@@ -3,7 +3,7 @@
 // by Nisan and Schocken, MIT Press.
 // File name: projects/01/Mux.hdl
 
-/** 
+/**
  * Multiplexor:
  * out = a if sel == 0
  *       b otherwise
@@ -14,5 +14,8 @@ CHIP Mux {
     OUT out;
 
     PARTS:
-    // Put your code here:
-}
\ No newline at end of file
+    Not(in=sel, out=n);
+    And(a=a, b=n, out=x);
+    And(a=b, b=sel, out=y);
+    Or(a=x, b=y, out=out);
+}
diff --git a/projects/01/Mux.out b/projects/01/Mux.out
new file mode 100644
index 0000000..e4b51c6
--- /dev/null
+++ b/projects/01/Mux.out
@@ -0,0 +1,9 @@
+|   a   |   b   |  sel  |  out  |
+|   0   |   0   |   0   |   0   |
+|   0   |   0   |   1   |   0   |
+|   0   |   1   |   0   |   0   |
+|   0   |   1   |   1   |   1   |
+|   1   |   0   |   0   |   1   |
+|   1   |   0   |   1   |   0   |
+|   1   |   1   |   0   |   1   |
+|   1   |   1   |   1   |   1   |