This is a team-based competition with a maximum of 5 members per team. Participants are allowed up to 5 submissions per day. All submissions must follow the exact format of sample_submission.csv and will be evaluated using the combined metric: Score = 0.4 × F1-score + 0.6 × (1 - MAE/5). External data and pre-trained models are permitted but must be publicly available and disclosed in the competition discussion. Final winners must submit reproducible code in a Kaggle kernel that runs within computational limits. Prohibited actions include manual labeling of test data, creating multiple accounts, sharing solutions before competition end, and reverse-engineering test labels. The top 3 teams will receive medals, and all participants completing the competition earn participation points. By participating, you agree to Kaggle's terms of service and that all submissions are your original work.