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: Do you mind taking a photo for me ?
Person2: Of course not .
Person1: That's really kind of you .
Person2: I'm afraid I don't know how to use your camera .
Person1: Well , it's an automatic camera . You just press the button .
Person2: I see .
Person1: Thanks a lot .

Ex Output:
0

Ex Input:
Person1: Show us our itineraries , please .
Person2: We'll first go to Mount Tai , then we'll go to Sichuan by air , after that we'll be leaving for Tibet .
Person1: How long will the trip take ?
Person2: At least 20 days .

Ex Output:
0

Ex Input:
Person1: What are the pop groups that you like ?
Person2: Oh , there are so many good ones ! I loved the Spice Girls . They were so cool !
Person1: I agree ! I cried for a week when they broke up .
Person2: I was really sad too , but at least I can still listen to their Cds .

Ex Output:
1