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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 estimate_complexity(self, x,y,z,n):
 """ calculates a rough guess of runtime based on product of parameters """

        num_calculations = x * y * z * n
        run_time = num_calculations / 100000  # a 2014 PC does about 100k calcs in a second (guess based on prior logs)
        return self.show_time_as_short_string(run_time)