import java.util.Scanner;

class Main{
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		while(sc.hasNext()){
			int n=sc.nextInt();
			int o=0,e=0;
			for(int i=0;i<n;i++){
				int x=sc.nextInt();
				if(x%2==0) e++;
				else o++;
			}
			System.out.println(Math.abs(o-e));
		}
	}
}