#include <iostream>
#include <iomanip>

#include <algorithm>
#include <string>
/////////
#define REP(i, x, n) for(int i = x; i < n; i++)
#define rep(i,n) REP(i,0,n)
#define P(p) cout<<(p)<<endl;
/////////
typedef long long LL;
typedef long double LD;
/////////
using namespace::std;
/////////

int main(void){
	cin.tie(0);
	ios::sync_with_stdio(false);
	cout << fixed;//
	//cout << setprecision(6);//

	int N;
	cin >> N;//[1,10^5]
	int temp = 0;
	int count0 = 0;
	int count1 = 0;
	rep(i,N){
		cin >> temp;
		if(temp<0)temp = -temp;
		if(temp%2 == 0){
			++count0;
		}
		else{
			++count1;
		}
	}
	if(count0 > count1){
		P(count0 - count1);
	}
	else{
		P(count1-count0);
	}
	return 0;
}