diff --git a/LinearList/vector/define.cpp b/LinearList/vector/define.cpp
index 57cd1de..8d5f57b 100644
--- a/LinearList/vector/define.cpp
+++ b/LinearList/vector/define.cpp
@@ -17,7 +17,15 @@ int main(){
 	 
 	cout << b.size() << " " << b.capacity() << endl;
 	b.resize(10);
+	b.reserve(100); 
 	cout << b.size() << " " << b.capacity() << endl;
 	
+	auto ti = b.begin() + 3;
+	b.insert(ti, 20);
+	for(int i = 0; i < b.size(); i++){
+		cout << b.at(i) << " ";
+	}
+	cout << endl;
+	
 	return 0;
 } 
diff --git a/LinearList/vector/define.exe b/LinearList/vector/define.exe
index 33b1ae6..dcb818d 100644
Binary files a/LinearList/vector/define.exe and b/LinearList/vector/define.exe differ