use std::io::*;
use std::str::*;

fn read<T: FromStr>() -> Option<T> {
    let stdin = stdin();
    let s = stdin
        .bytes()
        .map(|c| c.unwrap() as char)
        .take_while(|c| !c.is_whitespace())
        .collect::<String>();
    s.parse::<T>().ok()
}

fn main() {
    let n: u64 = read().unwrap();
    let mut o = 0;
    let mut e = 0;
    for _ in 0..n {
        let tmp: i64 = read().unwrap();
        if tmp % 2 == 0 {
            e = e + 1;
        } else {
            o = o + 1;
        }
    }
    let ans = e - o;
    if ans < 0 {
        println!("{}", ans * (-1));
        return;
    }
    println!("{}", ans);
}