#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    int n,x,e = 0,o = 0;
    cin >> n;
    for(int i = 0; i < n; i++){
        cin >> x;
        if(x % 2 == 0) e++;
        else o++;
    }

    cout << abs(e-o) << endl;
    
    return 0;
}