In this task you are given a premise and two alternatives in Chinese. You must choose the alternative that is more plausibly the cause or effect of the situation described by the premise. The input format is "premise
(1)alternative_1(2)alternative_2", the output should either be "1" or "2" based on your judgment.

Ex Input:
该名男子按下信封的湿口。
(1)他在信封上盖了邮票。(2)他把信封密封好了。

Ex Output:
2


Ex Input:
那人向我伸出手来。
(1)我握了握他的手。(2)我打了他一耳光。

Ex Output:
1


Ex Input:
这个男孩没有通过历史考试。
(1)他在课堂上认真听讲了。(2)他忘了学习。

Ex Output:

2