1diff --git a/file.txt b/file.txt
 2index c9e9e05..7d5fdc6 100644
 3--- a/file.txt
 4+++ b/file.txt
 5@@ -3,8 +3,10 @@ two
 6 three
 7 four
 8 five
 9-six
10+six six six six six six
11 seven
12 eight
13 nine
14 ten
15+eleven
16+twelve