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'.

Example Input: Person1: Do you like tea ?
Person2: Yes , but I don't know much about it .
Person1: Tea does good to people's health . There are many kinds of tea.Say , black tea , green tea , scented tea , brick tea , milk tea , Jas - mine tea , chrysanthemum tea and so on .
Person2: My favourite is Jasmine tea . I like its aroma .
Person1: Yeah , but scented tea is now in fashion .
Example Output: 1

Example Input: Person1: How did you enjoy your family party at " ginger ' s " ? I hear that they have a lovely menu and buffet .
Person2: Oh , it was great . We had seafood buffet . They do one every Friday . The waiters and waitresses are very good . They are very attentive , but don ' t hang around the table .
Person1: I like the buffets they have , but if often order a la carte , because I don ' t feel extremely hungry . I like the wine list there too .
Person2: Yes , so do I . they have wines from all over the world . There is a good range of prices to suit every pocket . We ordered some Australian red wine , which tasted delicious and wasn ' t expensive .
Person1: Some restaurants allow you to take your own wine and just charge you corkage , but the don ' t do that at " ginger ' s " . what was included in the seafood buffet ?
Person2: They had almost every kind of seafood . There were oyster , shrimp , prawns , crabs , and fish . I ate a lot of smoked salmon .
Person1: Did they have lobster ?
Person2: No , they didn ' t . you could order it from the menu . I think that lobster is too expensive to be included in the buffet .
Person1: Yes , it probably is . I don ' t like ordering oysters in restaurants . You never know whether they are fresh .
Person2: I know . I didn ' t eat any , but a few people in our group did and no one got sick .
Person1: When you eat out , do you usually eat from the buffet ?
Person2: Not usually . I usually just order a main course and have a dessert if I ' m still hungry afterwards .
Person1: Oh , you don ' t usually have a starter ?
Person2: No , I might have a soup if it ' s a cold winter day .
Example Output: 1

Example Input: Person1: Are these your text books ? Biochemistry , General Ecology , Botany , Cell Genetics , Molecular Genetics ...
Person2: Yes . I gotta review all of them for the final exam . It is just around the corner .
Person1: Oh , right ! Do you have many exams at the end of each semester ?
Person2: That depends . Some semesters have many , some don't . And some courses don't have exams but only ask for papers . That's easy .
Person1: And when do you prepare for your final exam ?
Person2: Honestly speaking , most students prepare it one month before the exam .
Person1: Really ? You only review your lessons in one month ? Does it work ?
Person2: Of course , it's useful . And it's very crucial to have the copies of teacher's notes , because most questions in the exam are based on them .
Person1: Wow , and all the key points are included in them ? You're so smart !
Person2: But the exam is not as simple as you may imagine . We have to stay up late .
Person1: Do you have the classrooms open for the whole night ?
Person2: Yes , some people even pack up his bed quilt and sleep there . That's a little bit crazy .
Example Output:
1