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    Please show what you've tried, we're not here to write it for you, we're here to help you fix your bugs. Commented Feb 22, 2014 at 9:37
  • I am not expecting a fully working code, I can write it my self, what I need is just a hint in the right direction. @Jack No, rows and columns are dynamic. Commented Feb 22, 2014 at 9:41