String Index
============

.. image:: ../images/13variable.png

.. image:: ../images/14variable.png

.. image:: ../images/15variable.png

.. image:: ../images/16variable.png

.. image:: ../images/17variable.png

.. image:: ../images/18variable.png

.. image:: ../images/19variable.png

.. image:: ../images/20variable.png

.. image:: ../images/21variable.png