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.

Q: The wind blew through the open window.
(1)The doorbell rang.(2)The curtains shuddered.

A: 2
****
Q: The man became annoyed with his friend.
(1)His friend interrupted him.(2)His friend bought him lunch.

A: 1
****
Q: The pen ran out of ink.
(1)I used a pencil.(2)I signed my name.

A:
1
****