diff --git a/DAVID_GENG_INTRODUCTION.txt b/DAVID_GENG_INTRODUCTION.txt
new file mode 100644
index 0000000..8fc53aa
--- /dev/null
+++ b/DAVID_GENG_INTRODUCTION.txt
@@ -0,0 +1,2 @@
+’19, Math
+Java
\ No newline at end of file