CodeChef A Very Easy Problem!

It took me a half an hour to solve it... with recursion.

In the end i failed with Wrong Answer, just forgotten to see the format of output. My attention again against me :(.

Conclusion: I have solved A Very Ease Problem! using recursion with 2 submissions.

(It's very interesting why submission is only in PURE TEXT and C#2, but now it's not a problem of a coder :) )