ADID Creation

ADID Creation

Hi is there anyway to create ADID by using following Policy.

Last 5 digest of Last Name + First 01 diget of First Name + 03 Sequel Number 

Example
User First Name : Saeed
User Last Name : Ahmed

ADID should be ahmeds001

if ahmeds001 already exist in AD then ADManagerPlus should generate ahmeds002 (should not generate random number like ahmeds024)