not particularly difficult, but if the tool is well sharpened, and as i was told, when i studied in okobrinood carving is a well-sharpened tool. yuri, how much time does it take you to make , for example, skating rinks ? complex, how it is made up, it consists of rivets and it consists of the bottom, well, well, how would it be assembled inside , how would it be possible to clean it with a stud, and i think in two days how could it already go out into the public, this is a riveting you call this thing yes, this is one rivet, each rivet has its own number, tell us about it, well, when we do it, we collect the rest, it turns out when the bottom is all together with rivets , it’s called an island, at first we sort of select an island with a stud, well, as if we draw a compass, we select with a stud and how would we try to sign each rivet , because as we do manually, each rivet is already different, as if it already has its own different thickness, everything is different, as if that’s why we try to sign, because there are moments when we kind of beat up the hoop and it’s as if all the rivets a