public class No_99 {

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

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

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

	}

}