Error in your code: you are trying to raise power before converting it to int

Use with AIint(i**2) 
#should be 
int(i)**2

Another approach, using map function.

Syntax: map(func, iterable)

In python, String is iterable which means you can iterate over it. For example:

Use with AIfor i in "hello":
   print(i)

#output will be: 
    h
    e
    l
    l
    o

Another simple concept before moving to map function: split() function will return the list.

Use with AIprint(type("hello".split()))
#output will be
<class 'list'>

Lets use map function to answer your question:

Use with AIa = map(int, input('Enter three digits separated by space:').split())

mylist = [i**2 for i in a]
print(mylist)

Explanation:

• The input() function will ask user to enter three numbers separated by space and that will be a string, now you can use split function over the string returned by input().
• Here, split function will return a list.
• Now, map function comes into the picture, it will take each element from the list returned at step 2 and map it to the function, in this case, it will map each element of the list to int.
• Variable a is map object, and map object is iterable, so you can apply for loop or list comprehension(you used list comprehension) to get desired output

The str.split() function is an attribute of the type str (string). To call it, you do:

input("Please enter two digits separated by space").split()

Note that .split(" ") isn't needed as that is what it is by default.