rs 4์  ๋ถ™ํ˜€์„œ ์“ฐ๊ณ ์žˆ๋Š”๋ฐ ์ดํ‹€ ๋˜๋‹ˆ๊นŒ ์Šฌ๋ผํ•œ ๋А๋‚Œ ๋งŽ์ด ๋น ์ง ์ข€ ๋‹ณ์•„๋„ ์Šฌ๋ผํ•œ ํ”ผํŠธ ์—†๋‚˜