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 may I help you ?
Person2: I need to return these books .
Person1: Give them here .
Person2: Here they are .
Person1: It appears these books are two weeks late .
Person2: I forgot they were due .
Person1: You do realize you are going to have to pay late fees , right ?
Person2: How much is the late fee ?
Person1: The late fee is 25 cents a day .
Person2: So I have to pay 25 cents for each day the books are late ?
Person1: It ' s 25 cents for each book .
Person2: That ' s a lot of money .

Ex Output:
1

Ex Input:
Person1: Hi , Zhengjun , what make you so happy .
Person2: You know what , I've just got a new job with a computer company .
Person1: Oh , congratulations !

Ex Output:
1

Ex Input:
Person1: Come on , Jenny , we are heading our way to the Opera House .
Person2: I am dead tired and I can't walk any further .
Person1: Oh , I am sorry , I thought you were not .
Person2: Why don't we stop and have a rest here ?
Person1: Fine . Actually I am a little tired too . Want some water ?

Ex Output:
0