diff --git a/main.go b/main.go
index d8c7633..f31fd86 100644
--- a/main.go
+++ b/main.go
@@ -1 +1,11 @@
-package go_study
+package main
+
+import (
+	"fmt"
+	"math/rand"
+)
+
+func main() {
+	fmt.Println("Hello World")
+	fmt.Println("My favorite number is", rand.Intn(100))
+}