python: ord() and chr() - string and ASCII encoding conversion

ord() function: string - "ascll encoding

chr() function: ascll encoding - "string"

#Function 
for i in range(ord( ' d ' ),ord( ' f ' )+1): #Get the ascll code values ​​corresponding to d and f: range(100,102+1) 
    print (i) #Print 100,101,102 print
     (chr(i)) # chr converts numbers to letters, prints d,e,f

Example:

There are three people a, b, c, and three iPhones d, e, and f! a said: my mobile phone is not d; b said: my mobile phone is not d and f

Q: Which mobile phone does each of the three hold?

for i in range(ord('d'),ord('f')+1):
    for j in range(ord('d'), ord('f') + 1):
        for k in range(ord('d'), ord('f') + 1):
            if(i != j) and (i != k) and (j != k):
                if (i != ord('d')) and (k != ord('d')) and (k != ord('f')):
                    print("a---%s  b---%s c---%s" %(chr(i),chr(j),chr(k)))

Print result: 
D:\untitled\1\venv\Scripts\python.exe D: /untitled/1/venv/main.py
a---f  b---d c---e

Process finished with exit code 0