Thank you for your question.
I'd like to answer in English, if I may.
I wouldn't say that the platforms are of such obsolescence that they cannot operate in and near the Arctic. As a matter of fact, they have undergone significant operational improvements to ensure that they are relevant platforms.
The challenge is in the operating system or the propulsion system of the platform. With that type of propulsion system, a diesel-electric submarine, and the kind of environment that the Arctic represents, it's just challenging—if not nearly impossible—for that type of propulsion technology to be able to operate in and around sea ice.