Upper-case ASCII characters used, plus three "#" strings from TLG conventions:
#2 == ϛ (6)#3 == ϙ (90)#5 == ϡ (900)Converting alphabetic α to a String yields α. Asking for it in ASCII yields A.
Converting the digit ϛ (6) to ASCII yields #2.
Converting the digit ϙ (90) to ASCII yields #3
Converting the digit ϡ (900) yields #5.