P13632 [CodeChef] oddevenx
NOI
题目描述

Given a sequence of numbers, find the absolute difference between the number of odd numbers and number of even numbers in a given sequence.

Input

The first line will contain the number of numbers in the sequence. And the second line will contain the sequence itself i.e. a series of integers separated by a space

Output

Print a single integer , giving the absolute difference between the number of even and number of odd numbers.

Example

Input:
5
72 33 76 514 985
Output:
1

输入格式

见题面

输出格式

见题面

样例输入
5 72 33 76 514 985
样例输出
1