Psih SWF

In a cartoon classroom, several identical figures in grey robes move in a synchronized loop, walking in a line across the room, with one figure repeatedly climbing out the window and another repeatedly holding a red brick against the wall. The scene is set in a room with light yellow walls, a large window, a hanging light bulb, and a spider web in the corner, with the text "С 1 Апеля!!!" written on the wall.