Extra task

https://github.com/yuliakordunova97/Average.git
https://github.com/yuliakordunova97/GoDutch.git
https://github.com/yuliakordunova97/PizzaSplit.git
https://github.com/yuliakordunova97/QuadraticEquation.git
https://github.com/yuliakordunova97/Snail.git