You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.

Ex Input:
Person1: Did Bean send these dirty jokes to you , too ? Look !
Person2: What a creep ! Phony good luck e-mails are one thing , but sexual harassment is crossing the line .
Person1: No wonder he asked for my address first-he just wants to harass me !
Person2: You could try using a spam filter to reject stuff that's obviously pornographic or anything else you don't want .

Ex Output:
1

Ex Input:
Person1: Would you mind waiting a while ?
Person2: Well , how long will it be ?
Person1: I'm not sure . But I'll get a table ready as fast as I can .
Person2: OK . We'll wait .

Ex Output:
0

Ex Input:
Person1: Mr . : Are you Mary Lin ?
Person2: Yes .
Person1: Mr . : I'm Mr . Rogers , your homeroom teacher .
Person2: Where should I sit ?
Person1: Mr . : Why don't you sit behind Brad ?
Person2: Who's Brad ?
Person1: Mr . : He's that guy in the blue shirt .
Person2: When does the first period begin , by the way ?
Person1: Mr . : As soon as the bell rings after the morning announcement .

Ex Output:
1