#include <iostream>
#include <vector>
#include <map>
#include <algorithm>
#include <queue>
#include <string>
#include <climits>
using namespace std;

#define rep(i,n) for(int i=0;i<n;i++)
#define REP(i,x,n) for(int i=x;i<n;i++)
#define ALL(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<":"<<x<<endl
const int INF = INT_MAX / 3;

int main(){
	int N; cin >> N;
	int even = 0, odd = 0;
	int x[10001];
	rep(i, N){
		int xx; cin >> xx;
		if (xx % 2 == 0) even++;
		else odd++;
	}
	cout << abs(even - odd) << endl;
	return 0;
}