import java.util.Scanner;

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

		int n = sc.nextInt(), a=0;
		for(int i = 0; i < n; i++){
			if(sc.nextInt() % 2 == 0){
				a++;
			} else {
				a--;
			}
		}
		if(a < 0){
			a *= -1;
		}
		System.out.println(a);
	}
}