advanced sifra

    AnsiString str = InputBox("Zadajte text, ktorý chcete zasifrovat","text","");
    ofstream f;
    f.open("advanced-sifra.txt");
    AnsiChar c;
    Label3->Caption = "";
    for ( int i = 1; i <= str.Length(); i++ ) {
        c = str[i]+i+2;
        f.put(c);
        Label3->Caption=Label3->Caption + c;
    }
    f.close();
    ifstream l;
    l.open("advanced-sifra.txt");
    int i = 1;
    if (l.fail()) {
        ShowMessage("Chyba pri otvarani");
    } else {
        Label2->Caption = "";
        c = l.get() - i - 2;
        while ( l.good() ) {
            i++;
            Label2->Caption=Label2->Caption + c;
            c = l.get() - i - 2;
        }
    }
    l.close();