diff --git a/programming/lectures/images/beetA.png b/programming/lectures/images/beetA.png
new file mode 100644
index 0000000..2be924d
Binary files /dev/null and b/programming/lectures/images/beetA.png differ
diff --git a/programming/lectures/images/beetB.png b/programming/lectures/images/beetB.png
new file mode 100644
index 0000000..473e5ff
Binary files /dev/null and b/programming/lectures/images/beetB.png differ