Ordinal Number

Instructions

Write a function to convert normal numbers to ordinal numbers. For zero (0) just return "0" as string.

Ordinal number are numbers that describe the position of something in a list. It is this context that ordinal numbers will be used, using an English-spelled name of an ordinal number.

The ordinal numbers are (at least, one form of them):

1st 2nd 3rd 4th 5th... 9th 10th 11th 12th... 20th 21st 22nd 23rd 24th... etc.

So entering a normal number results in its ordinal equivalent:

1 -> 1st
2 -> 2nd
3 -> 3rd
(and so on...)

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Source

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