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 think I need a new notebook .
Person2: Why ? Is there some new , cool computer out on the market ?
Person1: You bet there is . Feast your eyes on this puppy !
Person2: That's a notebook ?
Person1: Believe it !
Person2: It looks more like a toy , or a cool briefcase !
Example Output: 0

Example Input: Person1: Shall we sing with a karaoke ?
Person2: Great idea ! I do it every so often .
Person1: For us , karaoke is becoming a popular entertainment .
Person2: Yep . If you are a good singer , your audience will feel comfortable , right ?
Person1: I can not agree with you more . And if you are an awful one , that will be funny .
Person2: I remembered Tom is always out of tune . We burst into laughter .
Person1: Is that true ? Shall we invite him to join with us ?
Person2: So tricky !
Example Output: 0

Example Input: Person1: So what kind of music turns you on ?
Person2: Rock'n'Roll , I guess .
Person1: You mean the kind of stuff like Nirvana ?
Person2: Not really . That ' s pretty heavy metal .
Example Output:
1