def compare_dates(y1, m1, d1, y2, m2, d2):
    if (y1, m1, d1) == (y2, m2, d2):
        return 0

    elif (y1, m1, d1) < (y2, m2, d2):
        return -1

    elif (y1, m1, d1) > (y2, m2, d2):
        return 1


def test_compare_dates():
    assert compare_dates(2020, 9, 26, 2020, 9, 26) == 0
    assert compare_dates(2020, 9, 25, 2020, 9, 26) == -1
    assert compare_dates(2020, 9, 27, 2020, 9, 26) == 1
 
    assert compare_dates(2020, 9, 26, 2020, 10, 26) == -1
    assert compare_dates(2020, 9, 26, 2020, 8, 26) == 1
 
 
if __name__ == '__main__':
    test_compare_dates()
    name = 'Гудебский Данил'  # TODO: напишите Ваше имя
    print(f'26 сентября - {name}')