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 11.0.6) (judge verdict: Wrong Answer)

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try(Scanner scanner = new Scanner(System.in)) {
			String data1 = scanner.nextLine();
			String data2 = scanner.nextLine();

			int N = Integer.parseInt(data1);

			String[] arr = data2.split(" ");
			List<Integer> list = new ArrayList<Integer>();
			for (String s : arr) {
				list.add(Integer.parseInt(s));
			}

			int count = 0;
			for (int i = 0; i < list.size(); i++) {
				if (i % 2 == 0) {
					continue;
				}
				int n = list.get(i);
				if (n % 2 != 0) {
					count++;
				}
			}

			System.out.println(count);
		}
	}
}