solve math problem

🥰The new school year is about to begin! Let Talkie tools help make the start of the school year smooth! 
😎Use your imagination to create useful and fun campus-themed Talkies!
💪We will choose the top 5 thematic, creative, and useful Talkies as featured templates, and reward their creators with 💎2,000 diamonds each! 

⏰ Event Duration：August 26 - September 9
📅 Reward Distribution & Top Works Showcase: September 10 - September 11

*Note: Each participant can submit multiple Talkies and may only receive the prize once. 