Ada language help

[ugur kazar <kazarugur90@gmail.com>]

Hi there i need to work on ada project but i have no idea how to start because i dont have experiance on ada language.Can you give me some ideas to me how to deal with this project.Please dont missunderstand me i am not trying get the finished project from you with the zero afford. i am just asking for your help 
thanks for your help best regards

here is my project:

Homework 1 (to be sent by email before the mid-term exam)
Write a Bag (Multiset) generic package. A Bag contains elements and
their multiplicity as well. Removing an element means decreasing its
multiplicity.
The Bag type should be a record with a discriminant, which is the
maximum capacity of the bag. In the record put an array that contains
(element, multiplicity) pairs. The type of the elements is the parameter of the
generic package.
Define the Add and the Remove procedures, and the Multiplicity function
over the type Bag.
Write a For_Each iterator, which is an inner generic procedure. This
generic has a Process_Elem parameter procedure which will be applied over
each pair of a bag