DNI number calculation

Write a function (dniLetter) that, given a DNI number, returns the letter that corresponds to it. The algorithm to calculate the control letter of a DNI is the following:

• Find the remainder by dividing the number by 23

• The letter is obtained using the remainder as index of the following table:

REMAINDER	0	1	2	3	4	5	6	7	8	9	10	11
LETTER	T	R	W	A	G	M	Y	F	P	D	X	B

REMAINDER	12	13	14	15	16	17	18	19	20	21	22
LETTER	N	J	Z	S	Q	V	H	L	C	K	E

Complete the table with the number of rows you consider necessary to design your test set and run the automatic tests with pytest.\

test case number	input	expected output
1
2
3
4
5
6