import java.util.Scanner;

public class Yukicoder99 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int odd = 0, even = 0;

		for (int i = 0; i < n; i++) {
			if (sc.nextInt() % 2 == 0) even++;
			else odd++;
		}

		System.out.println(Math.abs(odd - even));;

	}
}