Problem:
Score : 200 points

Problem Statement

We have N squares assigned the numbers 1,2,3,\ldots,N. Each square has an integer written on it, and the integer written on Square i is a_i.

How many squares i satisfy both of the following conditions?

The assigned number, i, is odd.

The written integer is odd.

Constraints

All values in input are integers.

1 \leq N, a_i \leq 100

Input

Input is given from Standard Input in the following format:

N
a_1 a_2 \cdots a_N

Output

Print the number of squares that satisfy both of the conditions.

Sample Input 1

5
1 3 4 5 7

Sample Output 1

2

Two squares, Square 1 and 5, satisfy both of the conditions.

For Square 2 and 4, the assigned numbers are not odd.

For Square 3, the written integer is not odd.

Sample Input 2

15
13 76 46 15 50 98 93 77 31 43 84 90 6 24 14

Sample Output 2

3

Solution in Java (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;

public class Main {
	static Scanner sc = new Scanner(System.in);
	static ArrayList<String> strList = new ArrayList<String>();
	static ArrayList<String> strList2 = new ArrayList<String>();
	static ArrayList<Integer> intList = new ArrayList<Integer>();
	static HashMap<String,Integer> Hmap = new HashMap<String,Integer>();
	public static void main(String[] args) {


		int a = sc.nextInt();
		int ans=0;

		for(int i=1;i<=a;i++) {
			int b = sc.nextInt();
			intList.add(b);
		}

		int i =1;
		for(int disp : intList) {
			if(i%2 != 0 && disp%2 != 0) {
				ans++;
			}
			i++;
		}
		System.out.println(ans);
	}
}