1 files changed, 7 insertions, 0 deletions
diff --git a/others/volume1/086.scm b/others/volume1/086.scm
new file mode 100644
index 0000000..a45a81d
--- /dev/null
+++ b/others/volume1/086.scm
@@ -0,0 +1,7 @@
+(define (collatz n output)
+  (if (> n 1)
+      (if (= (remainder n 2) 0)
+          (collatz (quotient n 2) (append output '("x 2\n")))
+          (collatz (+ (* n 3) 1) (append output '("div 3\n"))))
+      output))
+(for-each display (reverse (collatz (read) '())))