Here’s how fast some artists can work. In 22 hours, 10 groups of writers, 10 directors and 40 actors will be conceiving, preparing and presenting a sketch comedy show called: Patrick Schmitz Presents: Sketch 22 (VII). For $7, you can see the results, from 8 p.m. to 11 p.m., Saturday, April 23, at the Alchemist Theatre, 2569 S. Kinnickinnic Ave., Milwaukee. Do the math. Twenty-two hours isn’t even a day to get this ready. Writers receive topics the night before, divine a comedy sketch, and the directors and actors work all day to rehearse it in time for the show. It’s like 70 college students cramming for one all-out group project.