Your lab partner has stumbled upon a really important sequence of mRNA (sadly, they won't tell you why it's important, but... whatever).

In an act that frustrates you more than people listening to music on PTV without headphones, they have also forgotten the conventions of writing out nucleotide sequences.

The note they left stuck to your laptop was written as follows:

3'-UAAGGCGUAUAGC-5'

To appease the biochemistry Gods, write out the corresponding sequence of coding strand DNA (properly, in 5' to 3' orientation) that encodes this mRNA.