chr(i + 97) code example

Example: chr() python

The chr() method returns a string representing 
a character whose Unicode code point is an integer.

print(chr(71), chr(101), 
chr(101), chr(107), 
chr(115), chr(32), 
chr(102), chr(111), 
chr(114),chr(32), 
chr(71), chr(101), 
chr(101), chr(107),  
chr(115)) 
-> G e e k s   f o r   G e e k s