按逾期天数分段统计M1M2M3M3plus

def solve():
    from pyodide.http import open_url
    clients_csv = open_url(____).read()
    loans_csv = open_url(____).read()
    loan_repayment_schedule_csv = open_url(____).read()
    loan_charges_csv = open_url(____).read()
    import sqlite3, pandas as pd
    from io import StringIO
    conn = sqlite3.connect(____)
    pd.read_csv(StringIO(____)).to_sql(____)
    sql = "____""____""____"
    result = pd.read_sql_query(____)
    print(result.to_string(____))
    conn.close()