diff --git a/Swap-without-third-variable/09. shift_swap.cpp b/Swap-without-third-variable/09. shift_swap.cpp
new file mode 100644
index 0000000..949eff8
--- /dev/null
+++ b/Swap-without-third-variable/09. shift_swap.cpp	
@@ -0,0 +1,12 @@
+#include "bits/stdc++.h"
+using namespace std;
+
+int main(){
+	int a=5;
+	int b=9;
+	cout<<"a :"<<a<<" b :"<<b<<endl;
+	a= a<<b;
+	b =a>>b;
+	a = log2(a/b); //just a little bit of math hahaha, hope it's right
+	cout<<"a :"<<a<<" b :"<<b<<endl;
+}