diff --git a/assignment-16.py b/assignment-16.py
index 0299b09..ce389b0 100644
--- a/assignment-16.py
+++ b/assignment-16.py
@@ -1,31 +1,50 @@
+# BEGINNING OF CODE
 # Function for quick sort:
-def quicksort(arr):
-    if len(arr) <= 1:
+def quickSort(arr):
+    if len(arr) <= 1: # if array is empty array
         return arr
 
-    pivot = arr[len(arr) // 2]
+    pivot = arr[len(arr) // 2] # Set pivot element
+
     left = [x for x in arr if x < pivot]
     middle = [x for x in arr if x == pivot]
     right = [x for x in arr if x > pivot]
+    '''
+    ## ALTERNATIVE WAY OF WRITING THE UPPER 3 LINES (for easy understanding)
+    left = [] # Empty list to store left part
+    for i in arr:
+        if (i < pivot):
+            left.append(i)
+    middle = [] # Empty list to store middle element
+    for i in arr:
+        if (i == pivot):
+            middle.append(i)
+    right = [] # Empty list to store right part
+    for i in arr:
+        if (i > pivot):
+            right.append(i)
+    '''
 
-    return quicksort(left) + middle + quicksort(right)
+    return quickSort(left) + middle + quickSort(right)
 
 # Function for displaying top scores:
 def top5(arr):
-    sorted_arr = quicksort(arr)
-    top_scores = sorted_arr[-5:][::-1]
-    return top_scores
+    top_scores = quickSort(arr)
+    return top_scores[-1:-6:-1]
 
 # Defining main function:
 def main():
-    total=int(input("Total number of students are:\t"))
-    percent=[]
+    percent = [] # List to store percentages
+    
+    total = int(input("Total number of students are:\t")) # Input for total students
     for i in range(total):
-        percent_in=float(input(f"Enter percentage for student {i+1}:\t"))
+        percent_in = float(input(f"Enter percentage for student {i+1}:\t"))
         percent.append(percent_in)
-    print(f"\nPercentages of students are:\t {percent}")
-    print(f"\n------------------\nSorted marks (using quick sort algorithm):\t{quicksort(percent)}\n------------------")
-    print(f"\n------------------\nTop five scores are:\t{top5(percent)}\n------------------\n")
+    
+    print(f"-----\nPercentages of students are:\t {percent}\n-----")
+    print(f"\n-----\nSorted marks (using quick sort algorithm):\t{quickSort(percent)}\n-----")
+    print(f"\n-----\nTop five scores are:\t{top5(percent)}\n-----")
 
 # Calling main function:
 main()
+# END OF CODE
\ No newline at end of file