汇总处方药费与检验单费用并分品类统计

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    presc=pd.read_csv(StringIO(open_url(____).read()))
    lab=pd.read_csv(StringIO(open_url(____).read()))
    print(____)
    print(____)
    total=presc['____'].sum()+lab['____'].sum()
    print(____)
    presc_by_cat=presc.groupby(____)['____'].sum().sort_values(____)
    print(____)
    for cat,amt in presc_by_cat.head(____).items():
        print(____)