To Andrea:

Don't worry :) I am much less stressed now. For the past two days I have already had lots of fun. Things are going really well and I have become happier. I am sorry if my gloomy mood made you worried last week.

And I really haven't learnt Perl properly. For the past one semester I have been looking at your code when I try to write my code... Today I don't have your codes and things become so hard to figure out... :(