diff --git a/src/ListNode.java b/src/ListNode.java
index dd6028c..e7b5304 100644
--- a/src/ListNode.java
+++ b/src/ListNode.java
@@ -1,3 +1,9 @@
 public class ListNode {
+  public int data;
+  public ListNode next;
+
+  public ListNode(int data){
+    this.data = data;
+  }
     
 }
\ No newline at end of file
diff --git a/src/Practice.java b/src/Practice.java
index 34a2f8d..e8f4891 100644
--- a/src/Practice.java
+++ b/src/Practice.java
@@ -1,5 +1,24 @@
 public class Practice {
     public static void main(String[] args) {
-        
+        ListNode head = new ListNode(14);
+        ListNode mySeven = new ListNode(7);
+
+        head.next = mySeven;
+
+        mySeven.next = new ListNode(28);
+        head.next.next.next = new ListNode(32);
+        head.next.next.next.next = new ListNode(23);
+
+        // System.out.println(head);
+        ListNode current = head;
+        int total = 0;
+        while (current != null){
+            //System.out.println(current.data);
+            total += current.data;
+            current = current.next;
+
+            System.out.println(total);
+        }
+
     }
 }