diff --git a/data/grade.txt b/data/grade.txt
new file mode 100644
index 0000000..157260f
--- /dev/null
+++ b/data/grade.txt
@@ -0,0 +1 @@
+cc20700204d06fbeb5498cf0078f3725
\ No newline at end of file
diff --git a/data/info.txt b/data/info.txt
new file mode 100644
index 0000000..691b3c9
--- /dev/null
+++ b/data/info.txt
@@ -0,0 +1 @@
+09975406912bb31cacc59f2573b68768
\ No newline at end of file
diff --git a/data/old_grade.txt b/data/old_grade.txt
new file mode 100644
index 0000000..157260f
--- /dev/null
+++ b/data/old_grade.txt
@@ -0,0 +1 @@
+cc20700204d06fbeb5498cf0078f3725
\ No newline at end of file