The previous round histories along with your plans are: {{history}}.
After careful reflection on previous bidding, your analysis for last round is {{counterfact}}.
Learn from your previous rounds, Let's think step by step to make sure we make a good choice. 
Write your plans for what bidding strategies to test next. 
Be detailed and precise but keep things succinct and don't repeat yourself. 
LIMIT your plan to 50 words.