This question already has an answer here:

  1. How do I pose a Minimal Working Example?
  2. How do I plug code into a question?

marked as duplicate by doncherry, diabonas, Speravir, T. Verron, N.N. Feb 21 '13 at 6:31

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


Have a look at:

and for the second question:

right at the beginning.

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