验证三种还款方式的总利息差异

def solve():
    from pyodide.http import open_url
    loan_products_csv = open_url(____).read()
    clients_csv = open_url(____).read()
    loans_csv = open_url(____).read()
    loan_repayment_schedule_csv = open_url(____).read()
    P, rate_y, n = ____, ____, ____
    r = rate_y / ____ / ____
    emi = P * r * (____+r)**n / ((____+r)**n - ____)
    emi_interest = round(____)
    ep_interest = sum(round((____)*r, ____) for i in range(____))
    bullet_interest = round(____) * ____
    print(____)
    print(____)
    print(____)
    min_val = min(____)
    if min_val == ep_interest:
        print(____)
    elif min_val == emi_interest:
        print(____)
    else:
        print(____)