On 2021-02-20, Dan Stromberg <drsali...@gmail.com> wrote: > Convert to a str. > Convert to a list of ints, one for each digit > Add 7 mod 10, for each digit in the list
I'd probably subtract 3 (mod 10), so as to more obviously match the stated requirement. > Convert to a list of single-character str's > Catenate those str's back together > Convert to a single int -- https://mail.python.org/mailman/listinfo/python-list
