Given a premise and two alternatives, choose the alternative that is a more plausible 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:
The skier slipped on the slope.
(1)She dropped her ski poles.(2)She hit a patch of ice.

Ex Output:
2


Ex Input:
The boy failed his history exam.
(1)He paid attention in class.(2)He forgot to study.

Ex Output:
2


Ex Input:
My mailbox was overflowing with letters.
(1)The lid on the mailbox broke.(2)I went on vacation for two weeks.

Ex Output:

2