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: What kind of music do you like ?
Person2: I like popular music best .
Person1: Me too .
Person2: Who is your favorite singer ?
Person1: Qi In is .
Person2: Do you know this song ?
Person1: Yes , I like it very much .
Person2: Let's sing it together , shall we ?
Person1: No problem .
Example Output: 1

Example Input: Person1: There are so many environment problems in the world today . Do you think we can really solve them all or will destroy the world ?
Person2: I hope that world leaders can get together and agree on a plan of action , but I doubt it ' ll happen before it ' s too late .
Person1: We need to solve the problem of air pollution before we destroy the atmosphere . There ' s lots of clean , modern technology , but companies in developed countries say it ' s expensive . Developing countries
Person2: Everyone is looking at the issue in the short term , rather than the long term . It ' s the same with the destruction of the rainforests . Countries and companies just want the wood . They ' re not thinking a
Person1: In other parts of the world , especially in Africa , there is a problem with desertification . Climate change and over-farming are causing farmland to turn into desert . In means that people cannot grow e
Person2: It also means that people sometimes fight over the farmland that remains . Damaging the environment actually leads to conflict between people .
Person1: Have you ever thought about joining an organization committed to protecting the environment ? You could get involved with projects to improve the environment .
Person2: I think I ' d like to do that . I could take the things I learn here back to my country when I have finished my studies .
Example Output: 1

Example Input: Person1: Anne , would you please come in for a while ? Please also bring along the minutes of yesterday's management meeting .
Person2: Of course , sir ... Here's the minutes of the meeting .
Person1: How long did the meeting last ?
Person2: The meeting was delayed by thirty minutes and it lasted for two and a half hours .
Person1: Did the chairman ask for me ?
Person2: Yes , I told him that you were very ill and couldn't attend .
Person1: All right . Have you handed in my report to him ?
Person2: Yes , I did . Besides , here are all the reports and materials handed out in the meeting . I think you'll have to do some replies .
Person1: Thank you , Anne . You've done an excellent job . Did they mention the date for the next meeting ?
Person2: No , they didn't . The chairman said he would send a memo to all managers by the end of this week informing them of the date of the next meeting .
Example Output:
0