# -*- coding: utf-8 -*-
"""
No.99 ジャンピング駒
https://yukicoder.me/problems/no/99
AC
"""
import sys
from sys import stdin
input = stdin.readline


def main(args):
    # 奇数と偶数はペアになって消滅するので、奇数・偶数の差分を求める
    N = int(input())
    numbers = [int(x) for x in input().split()]
    # even = sum([1 for x in numbers if x % 2 == 0])
    odd = sum([1 for x in numbers if x % 2 == 1])
    print(abs(len(numbers) - odd - odd))


if __name__ == '__main__':
    main(sys.argv[1:])