package main

import (
	"fmt"
	"math"
)

func main() {
	var n, v, nOdd, nEven int

	fmt.Scanln(&n)

	for i := 0; i < n; i++ {
		fmt.Scan(&v)
		if v%2 == 0 {
			nEven++
		} else {
			nOdd++
		}
	}

	fmt.Println(math.Abs(float64(nEven - nOdd)))
}