diff --git a/container-with-most-water/soobing.ts b/container-with-most-water/soobing.ts
index 085eaa7043..411c4f7cc7 100644
--- a/container-with-most-water/soobing.ts
+++ b/container-with-most-water/soobing.ts
@@ -1,3 +1,4 @@
+// 3rd tried
 /**
  *
  * 문제 설명
diff --git a/design-add-and-search-words-data-structure/soobing.ts b/design-add-and-search-words-data-structure/soobing.ts
index 002bbc57d0..942bdc604c 100644
--- a/design-add-and-search-words-data-structure/soobing.ts
+++ b/design-add-and-search-words-data-structure/soobing.ts
@@ -1,3 +1,4 @@
+// 3rd tried
 /**
  *
  * 문제 설명
diff --git a/longest-increasing-subsequence/soobing.ts b/longest-increasing-subsequence/soobing.ts
index a7ead1d644..1a6a15bb3e 100644
--- a/longest-increasing-subsequence/soobing.ts
+++ b/longest-increasing-subsequence/soobing.ts
@@ -1,3 +1,4 @@
+// 3rd tried
 /**
  *
  * 문제 설명
diff --git a/spiral-matrix/soobing.ts b/spiral-matrix/soobing.ts
index f439f730b9..8b94b26f44 100644
--- a/spiral-matrix/soobing.ts
+++ b/spiral-matrix/soobing.ts
@@ -1,3 +1,4 @@
+// 3rd tried (test)
 /**
  *
  * 문제 설명
diff --git a/valid-parentheses/soobing.ts b/valid-parentheses/soobing.ts
index a71c8e57a5..62050f97fe 100644
--- a/valid-parentheses/soobing.ts
+++ b/valid-parentheses/soobing.ts
@@ -1,3 +1,4 @@
+// 3rd tried
 function isValid(s: string): boolean {
   const result: string[] = [];
   const open = ["(", "[", "{"];