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: Have you ever been to Britain ?
Person2: Oh yes , I ' Ve been to Britain many times . I go there on business .
Person1: Really ? How often do you go there ?
Person2: Usually , I go to London twice a year but sometimes I go three or four times a year .
Person1: Do you always go on business or do you sometimes go for a holiday ?
Person2: I ' m afraid I never go for a holiday . It ' s always business .
Example Output: 1

Example Input: Person1: Wait a moment , I would like to take some snapshots here .
Person2: Is that OK ?
Person1: It's so beautiful here . I want to stay longer .
Person2: Well , I think we'd better go now . We have to follow the guide .
Person1: That's all right .
Example Output: 0

Example Input: Person1: I'm tired .
Person2: Well , you've been working on this assignment for five hours .
Person1: Yeah , I need to take a break .
Example Output:
0