Quinton brought 40 cupcakesfo school onhis birthday. He gave a cupcake to eachof the 18 students in Ms. Delmont's class. He also gave a cupcake to eachof the 16 students in Mrs. Donnelly's class. He also gave a cupcake to Ms. Delmont, Mrs. Donnelly, the school nurse, and the schoolprincipal. How many cupcakes did he haveleft over?