Mr. Poole made snacks in separate gift bags. He gave one each to the 36 seventh grade students going on the field trip. Then he gave 10 bags to the students in Mrs. Bark's class for decorating the trophy cases. Next he gave 7 to the students in Mrs. Drowe's class for helping during the school play. Mr. Poole had 2 snacks left. How many snacks did he make?