diff --git a/a.txt b/a.txt
new file mode 100644
index 0000000..b1e7b01
--- /dev/null
+++ b/a.txt
@@ -0,0 +1 @@
+7 0 1 2 0 3 0 4 2 3 0 3 2 1 2 0 1 7 0 1
\ No newline at end of file