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: Good afternoon , Mr . Anderson .
Person2: Good afternoon , Miss Li .
Person1: How nice to see you again !
Person2: Nice to see you , too .
Person1: It's been a long time , hasn't it ? How are you ?
Person2: Fine , thank you . And you ?
Person1: Very well too , is there anything I can do for you ?
Person2: Yes . Could you guide me to where I can change money ?
Person1: Sure , Mr . Anderson , please come along with me .
Person2: Thank you .
Person1: My pleasure .

Ex Output:
0

Ex Input:
Person1: This suit looks nice.Can I try it on ?
Person2: Yes , of course.The dressing room is over there .

Ex Output:
0

Ex Input:
Person1: Oh , hi Pam . When did you get back from Canada ? How was it ?
Person2: The day before yesterday . I only visited Montreal and Ottawa , but I had a great time .
Person1: Which city did you like better ?
Person2: That's hard to say ... I think Ottawa is prettier.It has better sightseeing , too . A lot of museums and galleries .
Person1: And what's Montreal like ? What did you think of it ?
Person2: Montreal is more exciting . It has better shopping.The stores are cheaper and more interesting .
Person1: Which one has better nightlife ?
Person2: Oh , Montreal of sure . It has more restaurants and clubs.They say Montreal is the most exciting city in Canada .
Person1: Well , I've always wanted to see Vancouver . I've heard it has the most beautiful views .

Ex Output:
1