Python program to lowercase the character without using a function

Python code to lowercase the character without using a function

# Python program to lowercase the character 
# without using a function
st = input('Type a string: ')
out = ''
for n in st:
    if n not in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
        out = out + n
    else:
        k = ord(n)
        l = k + 32
        out = out + chr(l)
print('----->', out)    

Output

First run:
Type a string: Hello world!
-----> hello world!

Second run:
Type a string: HHJHJHFF$%*@#$
-----> hhjhjhff$%*@#$

Third run:
Type a string: abcds14524425way
-----> abcds14524425way