diff --git a/histogram.expected b/histogram.expected
new file mode 100644
index 0000000..4ccbe2f
--- /dev/null
+++ b/histogram.expected
@@ -0,0 +1,7 @@
+2|**
+3|***
+6|******
+8|********
+9|*********
+9|*********
+10|**********
\ No newline at end of file