题目征集 - Problème

#8986. 题目征集

Statistiques

Ce problème est préparé par xiaowuc1 .

AI Translation — This statement was translated using AI and may contain inaccuracies. Please refer to the original statement if in doubt.

ICPC 北美预选赛（NAQ）的题目征集工作已经结束，共收到了若干道题目。评委们对每道题的难度进行了投票。NAQ 不希望被认为是一场“奇数”竞赛，因此他们拒绝使用任何难度评分为奇数（不能被 2 整除）的题目。

给定候选题目的难度评分，请问有多少道题目因该规则被排除？

输入的第一行包含一个整数 $n$ ($1 \le n \le 50$)，表示候选题目的数量。

接下来的 $n$ 行，每行包含一个整数 $d$ ($0 \le d \le 100$)，表示 $n$ 道题目的难度评分。

输出一个整数，表示根据该规则被排除的候选题目数量。

样例

输入 1

2
2
3

输出 1

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