package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func nextInt(sc *bufio.Scanner) int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func scanlnInt(n int) []int {
	x := make([]int, n)
	y := make([]interface{}, len(x))
	for i := range x {
		y[i] = &x[i]
	}
	n, e := fmt.Scanln(y...)
	if e != nil {
		panic(e)
	}
	x = x[:n]
	return x
}

func absInt(num int) int {
	if num < 0 {
		return -num
	}
	return num
}

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)

	n := nextInt(sc)
	xList := scanlnInt(n)

	count := 0

	for _, v := range xList {
		if v%2 == 0 {
			count += 1
		} else {
			count -= 1
		}
	}

	fmt.Println(absInt(count))
}