Need an idea for a practice code

[Fyah]

hello forum, I want to practice writing a C++ code using functions (no more than 4 with one of them being a void, i had created another thread that explained to me what functions were especially void and now i want to practice it) but I dont really know of a program to write. Can somebody give me an idea? Im not looking for something extremely hard but im also not looking for something extremely easy either. Intermediate is good. Im basically looking for someone to give me an assignment using functions with void types(Something like calculating somebody's pay like the number of hours they worked and overtime hours they worked, im giving you this example because it is one i have practiced already im looking for something a little more complex using functions) any practices that any of you guys have had in the past using functions would be much appreciated. Thanks in advance.