Rami d15 u need to put the code in horizontally , the first line the second and third ... it looks complicated but it will work...

this is the patter u have to follow

First 6 digits ---> Second 6 digits
Third 6 digits---> Fourth 6
Finally fifth 6 digits

i hope this isnt complicated... just go in a straight line horizontally filling up first line den second and den third.