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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def routeByMonthAbbr(self, request, year, monthAbbr):
 """Route a request with a month abbreviation to the monthly view."""

        month = (DatePictures['Mon'].index(monthAbbr.lower()) // 4) + 1
        return self.serveMonth(request, year, month)