import java.util.Scanner;


public class Main_yukicoder99 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

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

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