diff --git a/scans/lease.b b/scans/lease.b
new file mode 100644
index 0000000..df6c6df
--- /dev/null
+++ b/scans/lease.b
@@ -0,0 +1,20 @@
+main $(
+   auto ch;
+   extrn read, write;
+
+   goto loop;
+   while (ch != 04)
+      $( if (ch > 0100 & ch < 0133)
+            ch = ch + 040;
+      if (ch==015) goto loop;
+      if (ch==014) goto loop;
+      if (ch==011)
+       $( ch = 040040;
+          write(040040);
+          write(040040);
+          $)
+      write(ch);
+   loop:
+      ch = read()&0177;
+      $)
+  $)
\ No newline at end of file