diff --git a/curriculum/challenges/arabic/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.arabic.md b/curriculum/challenges/arabic/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.arabic.md
index b0583372564..e8e53375715 100644
--- a/curriculum/challenges/arabic/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.arabic.md
+++ b/curriculum/challenges/arabic/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.arabic.md
@@ -53,18 +53,17 @@ function LinkedList() {
 
   this.add = function(element){
     var node = new Node(element);
-    if(head === null){
+    if (head === null){
         head = node;
     } else {
-        var currentNode = head;
+      var currentNode = head;
 
-        while(currentNode.next){
-            currentNode  = currentNode.next;
-        }
+      while (currentNode.next) {
+        currentNode = currentNode.next;
+      }
 
-        currentNode.next = node;
+      currentNode.next = node;
     }
-
     length++;
   };
 
@@ -73,7 +72,6 @@ function LinkedList() {
   // Only change code above this line
 
 }
-
 ```
 
 </div>
diff --git a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md
index 88449a6f179..ed098b2f992 100644
--- a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md
+++ b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md
@@ -54,18 +54,17 @@ function LinkedList() {
 
   this.add = function(element){
     var node = new Node(element);
-    if(head === null){
+    if (head === null){
         head = node;
     } else {
-        var currentNode = head;
+      var currentNode = head;
 
-        while(currentNode.next){
-            currentNode  = currentNode.next;
-        }
+      while (currentNode.next) {
+        currentNode = currentNode.next;
+      }
 
-        currentNode.next = node;
+      currentNode.next = node;
     }
-
     length++;
   };
 
diff --git a/curriculum/challenges/english/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.english.md b/curriculum/challenges/english/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.english.md
index 93d842ea8fa..2d843ecaea9 100644
--- a/curriculum/challenges/english/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.english.md
+++ b/curriculum/challenges/english/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.english.md
@@ -61,18 +61,17 @@ function LinkedList() {
 
   this.add = function(element){
     var node = new Node(element);
-    if(head === null){
+    if (head === null){
         head = node;
     } else {
-        var currentNode = head;
+      var currentNode = head;
 
-        while(currentNode.next){
-            currentNode  = currentNode.next;
-        }
+      while (currentNode.next) {
+        currentNode = currentNode.next;
+      }
 
-        currentNode.next = node;
+      currentNode.next = node;
     }
-
     length++;
   };
 
diff --git a/curriculum/challenges/portuguese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.portuguese.md b/curriculum/challenges/portuguese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.portuguese.md
index 3190d16f34d..cf97082444b 100644
--- a/curriculum/challenges/portuguese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.portuguese.md
+++ b/curriculum/challenges/portuguese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.portuguese.md
@@ -54,18 +54,17 @@ function LinkedList() {
 
   this.add = function(element){
     var node = new Node(element);
-    if(head === null){
+    if (head === null){
         head = node;
     } else {
-        var currentNode = head;
+      var currentNode = head;
 
-        while(currentNode.next){
-            currentNode  = currentNode.next;
-        }
+      while (currentNode.next) {
+        currentNode = currentNode.next;
+      }
 
-        currentNode.next = node;
+      currentNode.next = node;
     }
-
     length++;
   };
 
diff --git a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md
index 102bda3dac3..dafe0a6ff57 100644
--- a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md
+++ b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md
@@ -54,18 +54,17 @@ function LinkedList() {
 
   this.add = function(element){
     var node = new Node(element);
-    if(head === null){
+    if (head === null){
         head = node;
     } else {
-        var currentNode = head;
+      var currentNode = head;
 
-        while(currentNode.next){
-            currentNode  = currentNode.next;
-        }
+      while (currentNode.next) {
+        currentNode = currentNode.next;
+      }
 
-        currentNode.next = node;
+      currentNode.next = node;
     }
-
     length++;
   };
 
diff --git a/curriculum/challenges/spanish/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.spanish.md b/curriculum/challenges/spanish/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.spanish.md
index dc332897085..dfe48b4faeb 100644
--- a/curriculum/challenges/spanish/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.spanish.md
+++ b/curriculum/challenges/spanish/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.spanish.md
@@ -54,18 +54,17 @@ function LinkedList() {
 
   this.add = function(element){
     var node = new Node(element);
-    if(head === null){
+    if (head === null){
         head = node;
     } else {
-        var currentNode = head;
+      var currentNode = head;
 
-        while(currentNode.next){
-            currentNode  = currentNode.next;
-        }
+      while (currentNode.next) {
+        currentNode = currentNode.next;
+      }
 
-        currentNode.next = node;
+      currentNode.next = node;
     }
-
     length++;
   };