diff --git a/en_US.txt.dvc b/en_US.txt.dvc
new file mode 100644
index 0000000..1663146
--- /dev/null
+++ b/en_US.txt.dvc
@@ -0,0 +1,4 @@
+outs:
+- md5: 98a7a516abd1868d5a7295ebd95b48b9
+  size: 3180205
+  path: en_US.txt
diff --git a/in_alphabet.dvc b/in_alphabet.dvc
new file mode 100644
index 0000000..8c465f7
--- /dev/null
+++ b/in_alphabet.dvc
@@ -0,0 +1,4 @@
+outs:
+- md5: 78c5ed78278e9bfa34481f95b6cab5f0
+  size: 26
+  path: in_alphabet
diff --git a/out_alphabet.dvc b/out_alphabet.dvc
new file mode 100644
index 0000000..6f7aaf3
--- /dev/null
+++ b/out_alphabet.dvc
@@ -0,0 +1,4 @@
+outs:
+- md5: 19a9c4125f6767586e8e8ee8acfbac9d
+  size: 51
+  path: out_alphabet