제가 비록 경제학자는 아닙니다만, 봉투 뒷면에 끄적거려 간단히 계산을 해봤는데요, (웃음) 콘크리트 1입방미터 당 90달러 정도가 필요하다고 나왔습니다.
I'm not an economist, very much not, but I did, quite literally, a back of the envelope calculation -- (Laughter) -- and it seems that for a cubic meter of concrete we would have to pay in the region of 90 dollars.