# Player Config ID: huggingface_DeepSeek-V3-0324_PayoffMaximizer_A (as Player A)
# Meta-Round: 3
# Experiment: PMxPM, Run: 2
# API: huggingface, Model: deepseek-ai/DeepSeek-V3-0324
# Based on textual strategy: huggingface_DeepSeek-V3-0324_PayoffMaximizer_A_MR3_strategy.txt
# LLM Suggested Fallback: C

def serendipitous_phoenix(my_history: list, opp_history: list, opponent_program_code: str) -> str:
    current_round = len(my_history) + 1
    total_rounds = 10
    
    if current_round == 1:
        return "C"
    
    if current_round <= 3:
        if opp_history[-1] == "D":
            return "D"
        return "C"
    
    if current_round <= 6:
        if len(opp_history) >= 2 and opp_history[-1] == "D" and opp_history[-2] == "D":
            return "D"
        return "C"
    
    if current_round >= 7:
        if current_round == 10 and opp_history[-1] == "C":
            return "C"
        if random.random() < 0.6:
            return "D"
        return "C"
    
    return "C"