pub fn run(inp :Vec<String>) {

    let mut curr_max = 0; 

    let mut elves :Vec<i32> = vec![]; 

    inp.iter().for_each(|elem| {

        let number = elem.parse::<i32>(); 

        match number {
            Ok(n) => {
                curr_max += n; 
            }

            Err(_) => {
                elves.push(curr_max); 
                curr_max = 0; 
            }
        }
        
    }); 

    let mut sum = 0; 

    for _ in 0..3 {
        let e = elves.iter_mut().max().unwrap(); 
        sum += *e; 
        *e = 0; 
    }

    println!("a2: {}", sum); 

}