#include <iostream>
using namespace std;

int main() {

    int paresM, imparesJ, n, dedos;

    while (cin >> n && n != 0) {
        paresM = imparesJ = 0;

        for (int i = 0; i < n && cin >> dedos; i++)
            if (dedos % 2 == 0)
                paresM++;

        for (int i = 0; i < n && cin >> dedos; i++)
            if (dedos % 2 == 1)
                imparesJ++;

        cout << abs(paresM - imparesJ) << endl;
    }

    return 0;
}