diff --git a/nine/src/bruteforce.js b/nine/src/bruteforce.js
index 5a59543..612caab 100644
--- a/nine/src/bruteforce.js
+++ b/nine/src/bruteforce.js
@@ -79,7 +79,9 @@ const checksum = iter => {
         .reduce(add)
 }
 
-const expand3 = x => x.split('').map(toInt).map((x, i) => ([x, i % 2, i % 2 ? -1 : i / 2]))
+const expand2 = x => x.split('')
+    .map(toInt)
+    .map((x, i) => ([x, i % 2, i % 2 ? -1 : i / 2]))
 
 const defrag2 = blocks => {
     const len = blocks.length - 1
@@ -120,5 +122,5 @@ const checksum2 = blocks => {
 }
 
 const part1 = pipe(expand, enfrag, checksum)
-const part3 = pipe(expand3, defrag2, checksum2)
+const part2 = pipe(expand2, defrag2, checksum2)