Instructions: 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:     Would you like to come to our party ?  
 Person2:  I'd like to . But I'm not myself today .  
 Person1:      What happened ? You look so pale .  
 Person2:  It's the end of the world for me .  
 Person1:      What makes you say that ?  
 Person2:  Today , I'm told I failed three courses .  
 Person1:      Oh , that's too bad . Work harder next term .  
 Person2:  B :: I'm such a fool that duplication of effort is only a waste time to me .  
 Person1:      Don't lose heart . Everything will be fine .  
 Person2:  I hope so . 
Output:
0