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 input: 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 output: 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.
Q: Speaker 1: Hey Ross, this is one of my co-stars, Dirk. Dirk, this is my good friend Ross.
Speaker 2: Nice to meet you.
Speaker 3: Hey! So what show are you on?
Speaker 2: Oh, I'm no actor, I'm a professor of palaeontology.
Speaker 1: It's a science.
Speaker 3: Oh! Hey well listen, I play a scientist on "Days". And my character has just won the Nobel prize.
Speaker 1: Hey Ross, listen, Dirk was wondering about the woman that you brought and if you guys were together, or...
Speaker 2: Oh, well no, but I mean, she only goes out with really, really smart guys.
Speaker 3: Hey, I got a 690 on my SATs.
Speaker 2: I'd lead with that.
A:
2