0.55ํ„ฐ์น˜ํ›„ ํ•˜๋ฝ ํ•œ๋ฒˆํ–ˆ์ž–์•„ ๋‹ค์‹œ ์•ž์ž๋ฆฌ 4ํ•œ๋ฒˆํ•œ ๋” ๋‹ค์˜ค