No problem at all! Like I said, such a mistake is easily made at these high numbers, especially if you do this on a single screen device (-> you have to remember the number correctly). If I remember correctly, I actually quite recently caught myself having made a similar mistake just before posting, so, whoops. And also, us Dutchies have it harder too, with our messed up number system (56 = zesenvijftig, which basically is six and fifty.... sigh times infinite...).