Win a Plantronics M55 Bluetooth Headset from PC Experts

Answer this puzzle on their site:

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

How do you do it?

I did it like this:

4,4,3,3,2,2,1,1

4 x x x x 4 x x
4 3 x x x 4 3 x
4 3 2 x x 4 3 2
4 3 1 2 1 4 3 2

I think that's right. I'm sure there are other ways of doing it.