diff --git a/go-demo-3/go.mod b/go-demo-3/go.mod
new file mode 100644
index 0000000..935a7d2
--- /dev/null
+++ b/go-demo-3/go.mod
@@ -0,0 +1,3 @@
+module demo/bookmarks
+
+go 1.23.6
diff --git a/go-demo-3/main.go b/go-demo-3/main.go
new file mode 100644
index 0000000..06cb75f
--- /dev/null
+++ b/go-demo-3/main.go
@@ -0,0 +1,16 @@
+package main
+
+import "fmt"
+
+func main() {
+	m := map[string]string{
+		"PurpleSchool": "https://purpleschool.ru",
+	}
+	m["Google"] = "https://google.com"
+	m["Gmail"] = "https://gmail.com"
+	fmt.Println(m)
+	delete(m, "Gmail")
+	for _, v := range m {
+		fmt.Println(v)
+	}
+}