package 練習;
import java.util.Date;
import java.util.Scanner;

public class main{
	public static void main(String[] args){
		Scanner sc=new Scanner(System.in);
		long exec_time=new Date().getTime();
		int n=sc.nextInt();
		int odd=0;
		int even=0;
		for(int i=0;i<n;i++){
			int x=sc.nextInt();
			if(Math.abs(x)%2==0){
				even++;
			}else if(Math.abs(x)%2==1){
				odd++;
			}else{
				System.err.println("Error");
				System.err.println("x%2="+x%2);
			}
		}
		System.out.println(Math.abs(even-odd));
		System.err.println(new Date().getTime()-exec_time+"ms");
	}
}