After having done the calculations that are needed to find the value of the working hours, now we have to check whether these hours are enough or some of them are left.
If the time is enough, we print the result that is specified in the task requirements, which in this case is the difference between the working hours and the hours needed for finishing the project.
If the time is not enough, we print the additional hours that are needed for finishing the project. They equal the difference between the hours for the project and the total working hours.
Test your solution here: https://judge.softuni.bg/Contests/Practice/Index/507#4.