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: I would appreciate it if you could go to the store for me .
Person2: No problem . What do you want me to get ?
Person1: Here's a list with a few things that I need you to get .
Person2: Did you forget to put anything on the list ?
Person1: I don't think I forgot anything .
Person2: Would you like me to go anywhere else for you ?
Person1: If you don't mind , I would appreciate it if you would pick up my prescription .
Person2: Has your prescription been filled yet ?
Person1: Someone at the pharmacy called and told me it was ready .
Person2: Sure , I'll go get it for you .
Person1: Thank you .
Person2: Anything for you .
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: Tonight is a party night ! What drinks do you think we need ?
Person2: Well , not everyone wants to drink beer . Make sure there are some soft drinks and juice . Nothing's as refreshing as iced drinks on a hot day .
Person1: I don't think we need too much in the way of soft drinks , Two super bottles of Cola should cover everyone . What about wine ?
Person2: Just buy a cask of wine . Have you bought ice yet ?
Person1: No , once I fill the tub with beer , I'll get the ice . The beer will be cool if you put the tub under the ice . The cooler , the better .
Person2: I think a bottle of champagne would be a good idea . It's appetizing and tasty .
Person1: Well , if you say so . Personally speaking , I'd rather die of thirst than drink champagne .
Example Output:
1