diff --git a/notes-and-examples/2026.05.06/homework.py b/notes-and-examples/2026.05.06/homework.py
index 9f9cc39..2c127de 100644
--- a/notes-and-examples/2026.05.06/homework.py
+++ b/notes-and-examples/2026.05.06/homework.py
@@ -1,10 +1,9 @@
-# 
-
 class Student:
     def __init__(self, name: str, year: int):
         self.name = name
         self.year = year
 
+
 # homework: implement this Queue which orders students by year.
 # students with a higher year are placed in front of students with a lower year
 class Queue:
@@ -15,4 +14,3 @@ class Queue:
 
     def popleft(self) -> Student:
         return Student(name="", year=0)
-
diff --git a/notes-and-examples/2026.05.13/overview.pdf b/notes-and-examples/2026.05.13/overview.pdf
new file mode 100644
index 0000000..d9baaa1
Binary files /dev/null and b/notes-and-examples/2026.05.13/overview.pdf differ