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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 UniversalCRTSdkDir(self):
 """ Microsoft Universal CRT SDK directory. """

        # Set Kit Roots versions for specified MSVC++ version
        if self.vc_ver >= 14.0:
            vers = ('10', '81')
        else:
            vers = ()

        # Find path of the more recent Kit
        for ver in vers:
            sdkdir = self.ri.lookup(self.ri.windows_kits_roots,
                                    'kitsroot%s' % ver)
            if sdkdir:
                break
        return sdkdir or ''