23.6์—์„œ ์ ๋ฆฝํ• ์ธํฌํ•จ 3๋งŒ ํ• ์ธ๋˜๋Š”๊ฑด๊ฐ€

21.2์—์„œ 3๋งŒ ํ• ์ธ์ธ๊ฑด๊ฐ€