diff --git a/book_with_bridge/comon_shit/main.go b/book_with_bridge/comon_shit/main.go
index 32563b5..7ae22ff 100644
--- a/book_with_bridge/comon_shit/main.go
+++ b/book_with_bridge/comon_shit/main.go
@@ -2,13 +2,17 @@ package main
 
 import "fmt"
 
+func square() func() int {
+	var x int
+	return func() int{
+		x++
+		return x*x
+	}
+}
+
 func main() {
-	kek := map[string]int{}
-	var lol []string
-
-	kek["alice"] = 1
-	fmt.Println(kek["alice"])
-
-	lol = append(lol,"string")
-	fmt.Println(lol)
+	f := square()
+	fmt.Println(f())	
+	fmt.Println(f())	
+	fmt.Println(f())	
 }
\ No newline at end of file