Definition: 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'.
Input:  Person1:     I think modern painting means nothing .  
 Person2:  I think so too . It's just pointless .  
 Person1:      Then why are so many guys so crazy about it ?  
 Person2:  I don't know . Maybe they're really crazy .  
 Person1:      Maybe . 

0