import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner koko = new Scanner(System.in);
        int n = koko.nextInt();
        int[] x = new int[n];
        int count=0;
        for(int i=0; i<n; i++){
            x[i] = koko.nextInt();
            if(x[i]%2==0){
                count++;
            }else{
                count--;
            }
        }
        System.out.println(Math.abs(count));
    }
}