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 you guys! 
Speaker 2, 
Speaker 3:Hey! Happy birthday ... 
Speaker 4: Shhh don't say that loud, Gunther's gonna want to hug me. 
Speaker 1: Uh, good news everyone, we finally found a nanny. This is Molly. Molly, Chandler, Joey. 
Speaker 2, 
Speaker 3: Hi. 
Speaker 5: Hi. 
Speaker 1: Ooh, somebody's getting a little fussy. 
Speaker 2: You damn right I am, I've been waiting for a cookie for 7 minutes. 
Speaker 4: Ok, you know what, I'm just gonna take her outside. 
Speaker 5: No, you stay, I'll do it. 
Speaker 4: OK, thank you. 
Speaker 5: Nice to meet you guys. 
Speaker 2: Yeah, you too. 
Speaker 4: Oh, wow, Molly is just great! 
Speaker 1: Yeah. 
Speaker 3: Yes, Bravo on the hot nanny. 
Speaker 4: What? You really think she's hot? 
Speaker 3: Are you kidding? If I wasn't married she'd be rejecting me right now. 
Speaker 4: And Joey? 
Speaker 2: How do you think she's doing? 
Speaker 4: Am I the only one who doesn't think that she's hot? Ross? 
Speaker 1: Eh, I mean, I mean she's not unattractive but hot? I .... 
Speaker 4: Thank you! 
Speaker 3: Now that Rachel's gone? 
Speaker 1: So hot I cried myself to sleep last night.

Solution: 4