import java.util.*;

public class Exercise130{
  public static void main (String[] args){

    Scanner sc = new Scanner(System.in);

    int n = sc.nextInt();
    int even = 0;
    int odd = 0;
    for(int i = 0; i < n; i++){
      if(sc.nextInt() % 2 == 0){
        even++;
      }else{
        odd++;
      }
    }
    System.out.println(Math.abs(even - odd));
	}
}