import java.util.Scanner;
class N099{
	public static void main(String args[]){
		Scanner s = new Scanner(System.in);
		int n = s.nextInt();
		int gu = 0, ki = 0;
		for(int i = 0; i < n; i++){
			if(s.nextInt() % 2 == 0){
				gu++;
			}else{
				ki++;
			}
		}
		System.out.println(Math.abs(gu - ki));
	}
}