Create a function that takes a string and returns the reversed string. However there's a few rules to follow in order to make the challenge interesting:
SpecialReverseString("Edabit") ➞ "Tibade"
SpecialReverseString("UPPER lower") ➞ "REWOL reppu"
SpecialReverseString("1 23 456") ➞ "6 54 321"N/A