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ok, thank you a lot

Hello to everybody,

I must include my personalized running head also on the first pages of every chapter in my document. In the preamble. I have the following:
\fancypagestyle{happy}{
\fancyhead[L]{I'm very happy}
\fancyfoot{}
\fancyhead[R]{\thepage}}
and then I use \pagestyle{happy} to include ...