#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 100000000000


int main(){
	
	int N;
	cin>>N;
	
	int cur = 0;
	rep(i,N){
		int x;
		cin>>x;
		if(x%2==0)cur++;
		else cur--;
	}
	
	cout<<abs(cur)<<endl;
	
	return 0;
}