Given the task definition and input, reply with output. 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.

学生拖延文章。
(1)他早早地提交了论文。(2)他提交的文件不完整。

2