use std::io::stdin;

fn main() {
    let mut s = String::new();
    stdin().read_line(&mut s).ok();
    stdin().read_line(&mut s).ok();
    let m = s.split_whitespace().collect::<Vec<_>>();
    let n = m.len();
    let m: usize = m.iter().map(|a| a.parse::<usize>().unwrap()).sum();
    println!("{}", (100 + m % n) / n + (m % n == 0) as usize);
}