diff --git a/02_BuildReq/main.c b/02_BuildReq/main.c
new file mode 100644
index 0000000..54f506a
--- /dev/null
+++ b/02_BuildReq/main.c
@@ -0,0 +1,6 @@
+# include <stdio.h>
+
+int main(void)
+{
+    printf("hello, world\n");
+}