Nokia interview questions

Fired off my CV to HR. 2 days later got an email to write a computer program (in any language of our choice) which could swap (in a list of 15 numbers) the multiples of 2, 5 and 15 with specific words. 5 days after that l was called in for an interview which was relatively easy (2 logic question, 1st one being navigating a robot around a maze with limit on commands you could give it, 2nd was a pseudo code a program that could work out odds and even numbers) and a few standard, why you want to work here questions. 8 hrs after my interview l was offered the job by a call from HR.

Written aptitude round followed by one technical round and then HR.