diff --git a/codes/ddj/.keep b/codes/ddj/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/hello.c b/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..44215d498b550316e6b901af4ffc210ffefd762c
--- /dev/null
+++ b/hello.c
@@ -0,0 +1 @@
+printf("helelo.c");
\ No newline at end of file