1diff --git a/new.txt b/new.txt 2new file mode 100644 3--- /dev/null 4+++ b/new.txt 5@@ -0,0 +1,12 @@ 6+a1 7+a11 8+a111 9+a1111 10+b1 11+b11 12+b111 13+b1111 14+c1 15+c11 16+c111 17+c1111
diff --git a/new.txt b/new.txt
new file mode 100644
--- /dev/null
+++ b/new.txt
@@ -0,0 +1,12 @@
+a1
+a11
+a111
+a1111
+b1
+b11
+b111
+b1111
+c1
+c11
+c111
+c1111