diff --git a/.gitignore b/.gitignore
index e6e9a85..9870ad5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 patch/
+.vscode/
\ No newline at end of file
diff --git a/JJL.c b/JJL.c
index c1c83c0..1012d90 100644
--- a/JJL.c
+++ b/JJL.c
@@ -5,6 +5,10 @@ int add(int a,int b)
     return a + b;
 }
 
+int multiply(int a,int b)
+{
+    return a * b;
+}
 int sub(int a,int b)
 {
     return a-b;