Problem:
The program would require you to make two tables: Donations Table and Request Table. Each table will have two attributes: the Inventory Type, which is what type of food item it is, e.g., Milk, Meat, etc., and the Amount, which is the amount of that food item, e.g., 20, 30, etc. Note: For simplification, no units for amounts are considered.

Functionality Specification

1. Add donations and requests to the tables.
2. For any new donation that comes in check if any donation is present in the donations table with same inventory type; if there is one then increase its amount by the new donation amount, and do not add a new entry in the donations table. If not, then add a new entry in the donations table for that donation.
3. Remove a request from the request table when it is fulfilled.
4. If for a request the request amount is greater than the amount present, then partially fulfill that request by the amount present. And do not delete that request from the request table; just reduce its amount by the amount that is fulfilled.
5. If in the process of fulfilling the request, the amount present for any donation becomes zero, then remove that donation from the donations table.
6. Print the status report, containing stock currently available and requests that are not yet fulfilled.
7. When the option is to Fulfill a Request, you are to only process the one request that is at the top of the Request Table (the oldest request). Thus, if it cannot be fulfilled, it will stall the system, until someone donates enough, so it can be satisfied later.

Input/Output Specification

At the beginning, the program should present the user with the available options, and ask for his/her preference. Based on the preference, the program should perform the corresponding task.

The user will have five choices:
1. Enter a Donation
2. Enter a Request
3. Fulfill the earliest Request
4. Print status report
5. Exit

When the user selects ‘1’, the program should ask the user for the inventory type and amount of the donation to be made. When the donation has been added to the donations table, the program should notify the user by printing out “Donation Added”.

When the user selects ‘2’, the program should ask the user for the inventory type and amount of the request to be made. When the request has been added to the requests table, the program should notify the user by printing out “Request Added”.

When the user selects ‘3’, the program should print “Request Fulfilled” if the request is completely fulfilled, print “Cannot be Fulfilled” if there is no donation of that type, and print
“Partially Fulfilled” if the donation type exists, but cannot completely satisfy the request.
If a request is fulfilled, it should be deleted from the Requests Table; if a donation is fully
used up in satisfying a request, the Donation Table entry should be deleted.

When the user selects ‘4’, the program should print the current Donations Table and the Requests Table.

When the user selects ‘5’, the program should print “Thank You for running the software. Bye for now”, and then the program exits.
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