diff --git a/hello.go b/hello.go
index cb79ce4..9eedd0a 100644
--- a/hello.go
+++ b/hello.go
@@ -6,7 +6,7 @@ func main() {
 	fmt.Println("hello world")
 
 	sum := 0
-	for i := 0; i < 10; i++ {
+	for i := 0; i < 15; i++ {
 		fmt.Println(sum)
 		sum += i
 	}