import java.util.*;
import java.lang.*;
import java.io.*;
 
class A
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner in = new Scanner(System.in);
		int n, number, count = 0;
		n = in.nextInt();
		for (int i = 0;i < n; i++){
			number = in.nextInt();
			if ((number / 2) % 2 == 1) count++;
		}
		System.out.print(count);
		in.close();
		return;
	}
}