Complex sentence: Run 1 km; swear in the presence of a teacher, 10-20 pushups; running in the hall, go back and walk; talking after lights out, stand in silence in the hallway for half an hour while dorm mates get to sleep.
Split into simpler sentences: Run 1 km. Swear in the presence of a teacher, 10-20 pushups. Talking after lights out, stand in silence in the hallway for half an hour while dorm mates get to sleep.