Given the task definition and input, reply with output. 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'.

Speaker 1: Barry?
Speaker 2: Come in.
Speaker 1: Are you sure?
Speaker 2: Yeah! It's fine, it's fine. Robbie's gonna be here for hours.
Speaker 3: Huh?!
Speaker 2: So, how ya doin?
Speaker 1: I'm- uh- I'm okay... You look great!
Speaker 2: Yeah, well..
Speaker 4: Dr. Farber, Jason Greenstein's gagging.
Speaker 2: Be right there. Be back in a sec.
Speaker 1: I dumped him.
Speaker 3: Okay.
2