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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 CrossProd(self, other):
 """ Returns the cross product of self and other. """

    return Point(
        self.y * other.z - self.z * other.y,
        self.z * other.x - self.x * other.z,
        self.x * other.y - self.y * other.x)