single payment they have made from their bank account in a week. The amounts of money, in pennies, paid into their account $($the credits$)$ are represented by positive integers and the amounts of money, in pennies, paid out of their account $($the debits$)$ are represented as negative integers. There are many ways of doing this, but here is their initial top$-$level decomposition.

$>$ Determine the largest single debit

$>>$ Input a list of transactions

$>>$ Create a new list that contains only the negative amounts

$>>$ Find the largest negative value in the new list

$>>$ Print the result in pounds and pence

a$.$In this part you will consider only this part of the top$-$level algorithm:

$>>$ Input a list of transactions

$>>$ Create a new list that contains only the negative amounts

In order to test your code you should also add the step:

$>>$ Print the new list

One of the tests of your code should be for a list of transactions derived from your PI number. In this test, the first five transactions are $1050,11369,2374,1345,1272.$ The final transaction, a debit, is given by the first four digits of your PI number. So$,$ for example, for the PI number B$9081720,$ your transactions input list would be:

$[1050,11369,2374,1345,1272,9081]$

i$.$Describe the input data and the output data for this first task.

ii$.$Specify one further transactions input list you might use in testing, in addition to the list you have created using your PI number. Make sure that you state the test input, the expected output and a brief explanation of why you selected this test.

iii.Write an algorithm based on Pattern $2\mathrm{.}3.$

iv$.$Implement your algorithm as Python code. Your code must match the steps of your algorithm and you should use comments in the code to make it clear how the two correspond. Remember that your code must work for an input list of any length. Marks will be lost if the program does not follow the algorithm. Copy your Python code for this first task into your solution document as text, using an evenly spaced font such as Courier New or Consolas. Name your Python file Q$2$a$\_$OUCU.py$,$ where $$OUCU$$ is your OU computer username, e$.$g$.$ abc$123.$ Then include the code file in your TMA zip file.