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: Welcome ! Sophia told us you were coming !
Person2: Um ... It's wonderful to be here . Uh ... this place looks really cozy .
Person1: Thank you ! Your cheeks are as red as a tomato ! Are you shy ?
Person2: Maybe ...
Person1: Some of my grappa will cure your shyness .
Person2: Is that a kind of alcohol ?
Person1: It's a clear spirit we drink any time of the day . You will love it !
Person2: Great . My face will turn even redder !
Example Output: 0

Example Input: Person1: Can I help you ?
Person2: I want to buy a hat .
Person1: Come here , please .
Person2: Is this one fit for you ? It is nice .
Person1: I don't like the style .
Person2: How about this one ?
Person1: Black is not my favorite colour .
Person2: You must like this pink one , don't you ?
Person1: It's pretty . How much is it ?
Person2: Fifty yuan .
Person1: It's too expensive . Can you come down a little ?
Person2: How about forty-five ?
Person1: I'll buy it if forty .
Person2: OK .
Example Output: 1

Example Input: Person1: Northwest Airline .
Person2: Hello , I'd like to reconfirm my flight .
Person1: May I have your flight No . , PLS ?
Person2: My flight No . is 102 leaving Baiyun Airport at fourteen twenty .
Person1: Yes , that's our regular flight to Shanghai . What's your name , PLS ?
Person2: I am Jason Armstrong . My first initial is J .
Person1: One minute . Oh , yes , here we are . You are flying economy class , aren ' t you ?
Person2: Yes , that's right .
Person1: Okay , you are all set , Mr . Armstrong . Enjoy your flight !
Person2: Thanks !
Example Output:
0