use std::env::args;
use std::fs::File;
use std::io::BufRead;
use std::io::BufReader;

fn get_data() -> (u64, u64) {
    let path = args().nth(1).unwrap();
    let file = File::open(path).unwrap();

    let mut state = 0;
    let mut player1 = 0;
    let mut player2 = 0;

    for line in BufReader::new(file).lines() {
        match state {
            0 => {
                player1 = line.unwrap()[28..].parse::<u64>().unwrap();
                state = 1;
            },
            1 => {
                player2 = line.unwrap()[28..].parse::<u64>().unwrap();
                state = 2;
            },
            _ => unreachable!(),
        }
    }

    return (player1, player2);
}

fn main() {
    let (mut player1, mut player2) = get_data();

    let mut die: u64 = 0;
    let mut score1: u64 = 0;
    let mut score2: u64 = 0;

    loop {
        let d1 = 3 * (die % 100) + 6;
        player1 = (player1 + d1 - 1) % 10 + 1;
        score1 += player1;
        die += 3;
        if score1 >= 1000 {
            println!("{}", score2 * die);
            break;
        }

        let d2 = 3 * (die % 100) + 6;
        player2 = (player2 + d2 - 1) % 10 + 1;
        score2 += player2;
        die += 3;
        if score2 >= 1000 {
            println!("{}", score1 * die);
            break;
        }
    }
}