diff --git a/Readme b/Readme
index 88904c1a..614b6058 100644
--- a/Readme
+++ b/Readme
@@ -6,13 +6,13 @@ $ git clone http://github.com/arclanguage/anarki
 
 $ cat x.mu
 (main
-  ((1 integer) <- literal 1)
-  ((2 integer) <- literal 3)
-  ((3 integer) <- add (1 integer) (2 integer))
+  ((x integer) <- literal 1)
+  ((y integer) <- literal 3)
+  ((z integer) <- add (x integer) (y integer))
 )
 
 $ ./anarki/arc mu.arc x.mu
-#hash((1 . 1) (2 . 3) (3 . 4))  # state of simulated memory after executing x.mu
-  # location 3 contains the sum of locations 1 and 2
+hash((x . 1) (y . 3) (z . 4))  # state of simulated memory after executing x.mu
+# location z contains the sum of locations x and y
 
 $ ./anark/arc mu.arc.t  # automated tests; start reading here
diff --git a/x.mu b/x.mu
index 78a51159..7341c5d2 100644
--- a/x.mu
+++ b/x.mu
@@ -1,5 +1,5 @@
 (main
-  ((1 integer) <- literal 1)
-  ((2 integer) <- literal 3)
-  ((3 integer) <- add (1 integer) (2 integer))
+  ((x integer) <- literal 1)
+  ((y integer) <- literal 3)
+  ((z integer) <- add (x integer) (y integer))
 )