import java.util.Scanner;
public class AltifLiad {

    public static void main(String[] args) {
        int [] arr;
        arr = new int [5];
        arr[0]=5;
        arr[1]=3;
        arr[2]=7;
        arr[3]=6;
        arr[4]=15;
        int index=2;
        System.out.println(zugi(arr,index));
    }
    public static int zugi(int[]arr,int index)
    {
        if(index==arr.length)
            return 0;
        if(arr[index]%2==0)
            return zugi(arr,index+1)+1;
        return zugi(arr,index+1);

    }

}