diff --git a/graph/increase_count.drawio.svg b/graph/increase_count.drawio.svg
new file mode 100644
index 0000000..5ed41b0
--- /dev/null
+++ b/graph/increase_count.drawio.svg
@@ -0,0 +1,129 @@
+
\ No newline at end of file
diff --git a/graph/insert.drawio.svg b/graph/insert.drawio.svg
new file mode 100644
index 0000000..7759940
--- /dev/null
+++ b/graph/insert.drawio.svg
@@ -0,0 +1,102 @@
+
\ No newline at end of file