diff --git a/problems/LabTwo_ChapterSix.h b/problems/LabTwo_ChapterSix.h
index bccac8dcb8df426a1af1e54b9a75ff0969c31fe4..b7673eeaa12916dc0d2d946c8bda087211b6e2a9 100644
--- a/problems/LabTwo_ChapterSix.h
+++ b/problems/LabTwo_ChapterSix.h
@@ -1,8 +1,29 @@
 //
-// Created by Ari Trachtenberg on 9/16/24.
+// Created by Ari Trachtenberg on 9/10/24.
 //
 
-#ifndef PUBLIC_LABTWO_CHAPTERSIX_H
-#define PUBLIC_LABTWO_CHAPTERSIX_H
+// CHAPTER 6
 
-#endif //PUBLIC_LABTWO_CHAPTERSIX_H
+/**
+ * @param arr An array of integers
+ * @param size The number of integers stored in array [arr]
+ * @return The sum of the following for [arr]:
+ *    * Every element at even index.
+ *    * Every even element.
+ *    * The product of the first and last element.
+ *
+ * @example 1
+ * int test[] = {1,2,3};
+ * labSix_pZero(test,3) returns 9 as the sum of:
+ *    * 1+3 (elements at even index)
+ *    * 2 (even elements)
+ *    * 3 (first*last element)
+ *
+ * @example 2
+ * int test2[] = {1,2,3,4};
+ * labSix_pZero(test,5) returns 14 as the sum of:
+ *    * 1+3 (elements at even index)
+ *    * 2+4 (even elements)
+ *    * 4 (first*last element)
+ */
+int labSix_pZero(int arr[], int size);
\ No newline at end of file