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: I just got sacked .
Person2: I'm sorry to hear that .

Ex Output:
1

Ex Input:
Person1: Can you believe that Susan got married ?
Person2: Really ? I remember she said if she would remain single . Is the man very rich ?
Person1: No . That ' s what is surprising me .
Person2: You means she didn ' t marry a rich man .
Person1: He ' s a postman .
Person2: I thought she would marry a fortune .

Ex Output:
1

Ex Input:
Person1: Wei , you look really tired .
Person2: Yes , I didn ' t finish work until 9:00 pm .
Person1: 9:00 !
Person2: Yes , I have too much work to do at the moment .
Person1: Why ' s that ?
Person2: Because too many people in the office are on holiday .

Ex Output:
0