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'.

Ex Input:
Person1: How was school today ?
Person2: It was great . I made some friends .
Person1: Really , that's good .
Person2: But the lessons this semester are a little bit hard .
Person1: They aren't hard . I am sure you can do it .

Ex Output:
1

Ex Input:
Person1: By the way , how many books am I allowed to check out ?
Person2: You can check out two books at a time .
Person1: How long can I keep the books ?
Person2: For two weeks . After that you must renew the books if you wish to keep them longer .

Ex Output:
1

Ex Input:
Person1: I ' ll sing you a song .
Person2: Yes , sing a song . But don ' t sing a sad song .
Person1: Most of my songs are sad , sorry .
Person2: Well , please sing one that ' s not sad .
Person1: OK , I ' ll sing San Francisco then .

Ex Output:
0