Whoa, I completely overlooked Airbus' answer... And our counting is way off...

It should be 2704 and A90
@Airbus: A90 is the same as 2704, but in hexadecimal. This is where you - long story short - count to 16 before continuing to ten: 1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,10
This means that 1-10 in hexadecimal is actually 16 numbers.