检测生成卡片中的重复项

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    results=pd.read_csv(StringIO(open_url(____).read()))
    cards=pd.read_csv(StringIO(open_url(____).read()))
    def is_duplicate(____):
        front_lower=str(____).lower().strip()
        for ef in existing_fronts:
            if str(____).lower().strip()==front_lower: return True
        return False
    existing_fronts=list(____)
    dupes=____; checked=____
    for _,r in results.head(____).iterrows():
        checked+=____
        if is_duplicate(____): dupes+=____
    print(____)
    print(____)