Instructions: 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.
Input: 罪犯自首了。
(1)证据指向了他。(2)没有不利于他的证据。
Output:
1