import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int odd =0;
        int even=0;
        for(int i=0; i<N; i++){
            int X = sc.nextInt();
            if(X%2==0){even++;}else{odd++;}
        }
        int r = Math.abs(odd-even);
        System.out.println(r);
    }
}