diff --git a/images/13_05/16.png b/images/13_05/16.png
new file mode 100644
index 0000000..1068211
Binary files /dev/null and b/images/13_05/16.png differ
diff --git a/images/13_05/17.png b/images/13_05/17.png
new file mode 100644
index 0000000..968afde
Binary files /dev/null and b/images/13_05/17.png differ
diff --git a/images/13_05/18.png b/images/13_05/18.png
new file mode 100644
index 0000000..81180b9
Binary files /dev/null and b/images/13_05/18.png differ
diff --git a/images/13_05/19.png b/images/13_05/19.png
new file mode 100644
index 0000000..2d1b21c
Binary files /dev/null and b/images/13_05/19.png differ
diff --git a/images/13_05/20.png b/images/13_05/20.png
new file mode 100644
index 0000000..e391caf
Binary files /dev/null and b/images/13_05/20.png differ