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: Excuse me , how do I get to the Forbidden City ?
Person2: Follow this road and turn right at the second intersection . It'll be right there .
Person1: Is it far ?
Person2: No , it should only take you about 15 minutes by foot .
Person1: Thank you .
Example Output: 1

Example Input: Person1: May I help you with something ?
Person2: I would like to return these books .
Person1: What happened to this book ?
Person2: I dropped it , and the cover tore off .
Person1: I ' m going to have to charge you for the damage .
Person2: How much ?
Person1: It ' s only $ 5 .
Person2: That ' s not too bad .
Person1: I know it ' s not .
Person2: Here ' s the money for the book .
Person1: Thank you for your payment .
Person2: You are very welcome .
Example Output: 1

Example Input: Person1: Is this your umbrella , miss ?
Person2: Oh , yes , it is . Thank you . I was looking for it just now .
Person1: You look a bit familiar to me . I wonder if I have seen you somewhere before .
Person2: Have you ?
Person1: May I ask where you live ?
Person2: Just two blocks away , in that tall building .
Person1: That ' s it . I live there , too . I live on the sixth floor .
Person2: My family move in just two weeks ago . We live on the fourth floor .
Person1: It ' s a small world ! May I know your name , miss ?
Person2: I ' m Chen Ming .
Person1: How do you do , Miss Chen ? I ' m Song Mei .
Person2: I ' m glad to meet you , Mr . Song .
Person1: Are you going to your office now , Miss Chen ?
Person2: No , I ' m going to the airport to meet some friends from Beijing .
Example Output:
1