You are given a dialog between 2 or more individuals. You need to generate the number of the speaker (e.g. 1 for Speaker 1) who had the most lines in the dialog. If there is a tie, output the answer '0'.
Example: Speaker 1: What do you think we should do for our 10th wedding anniversary? 
Speaker 2: Hm, how about we take a vacation? Somewhere sandy and warm. 
Speaker 1: Well, if we're going to go out of the country, you need to be sure to renew your passport. It expired over a year ago! 
Speaker 2: How about we get something expensive instead of travelling.  We could get a new car. 
Speaker 1:  Is this your way of telling me that you want me to buy you a car?
Example solution: 1
Example explanation: In this dialog, there are 5 lines of speech.  Three of them belong to Speaker 1 and two of them belong to Speaker 2.  Therefore, Speaker 1 has the most lines in the dialog.

Problem: Speaker 1: Hey everybody, look who's here! You remember my grandmother! 
Speaker 2: Big night! 
Speaker 3: This is so cool! 
Speaker 4: So, Joey on Law & Order, you must be very proud! 
Speaker 1: Chandler, she doesn't understand a word of English. 
Speaker 4: I'm sorry, I thought you were Joey's other grandmother. I've done it again. 
Speaker 1: She's my biggest fan. Yeah, she's the only one in the family that's believed in me.

Solution: 1