void Bankomat::odejmijBank(int kwota)
{
    if ((kwota % 10 != 0) || (kwota == 30) || (kwota == 10))
    {
        cout << "kwota nie mozliwa do wyplaty\n";
        return;
    }
    static int bank[] = { 200, 100, 50, 20 };
    for (int p = 0, cnt = 0; kwota; p++)
    {
        cnt = kwota / bank[p];
        while (cnt > 0) {
            int roznica = kwota - cnt*bank[p];
            if (roznica % 20 == 0 || roznica % 50 == 0 || roznica > 100) {
                if ((kwota - cnt*bank[p]) == 0)
                    cout << cnt << " * " << bank[p] << " PLN \n" << endl;
                else
                    cout << cnt << " * " << bank[p] << " PLN" << " + ";
                iloscBank[p] -= cnt;
                kwota -= cnt*bank[p];
                break;
            }
            else if (cnt > 0) {
                cnt--;
            }
        }
    }
}