diff --git a/code/AB_self_assembly/Ab_assembly.py b/code/AB_self_assembly/Ab_assembly.py
new file mode 100644
index 0000000..a4f89e7
--- /dev/null
+++ b/code/AB_self_assembly/Ab_assembly.py
@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Thu Aug  1 13:46:07 2019
+
+@author: ranap
+"""
+
+import numpy as np
+