create the AlphabetController and fill the initial implementation
use the alphabet_controller in app_delegate
set the controller as the table's dataSource at the end of viewDidLoad
The data source must implement the following methods:

tableView:cellForRowAtIndexPath:
tableView:numberOfRowsInSection:
a more complete implementation for cellForRowAtIndexPath
initialize an array to use as the titles of our rows in viewDidLoad
using @data in numberOfRowsInSection
set cell's provided textLabel to use the corresponding string in @data
making our controller the delegate in viewDidLoad
use the delegate method tableView:didSelectRowAtIndexPath