实现交易冲正：找到原交易→生成反向流水

def solve():
    from pyodide.http import open_url
    offices_csv = open_url(____).read()
    staff_csv = open_url(____).read()
    savings_products_csv = open_url(____).read()
    clients_csv = open_url(____).read()
    savings_accounts_csv = open_url(____).read()
    savings_account_transactions_csv = open_url(____).read()
    import sqlite3
    import pandas as pd
    from io import StringIO

    conn = sqlite3.connect(____)
    pd.read_csv(StringIO(____)).to_sql(____)
    pd.read_csv(StringIO(____)).to_sql(____)

    def reverse_transaction(____):
        tx = conn.execute('____', (____)).fetchone()
        if not tx:
            return {'____': '____', '____': '____'}
        if tx[____] == ____:
            return {'____': '____', '____': '____'}
        acc = conn.execute('____', (____)).fetchone()
        new_balance = acc[____] + tx[____]
        conn.execute('____',
                     (____))
        conn.execute('____', (____))
        conn.execute("____""____""____",
            (____))
        conn.commit()
        return {'____': tx_id, '____': tx[____], '____': '____'}

    result = reverse_transaction(____)
    print(____)
    conn.close()