diff --git a/linked-list-cycle/soobing.ts b/linked-list-cycle/soobing.ts
index d363c846f3..7b36444da0 100644
--- a/linked-list-cycle/soobing.ts
+++ b/linked-list-cycle/soobing.ts
@@ -1,3 +1,4 @@
+// 3rd try
 /**
  * 문제 설명
  * - 링크드리스트 내에 cycle이 존재하는지 확인하는 문제