๊ฒ€์ƒ‰ํ–ˆ์„๋•Œ 3~5๋งŒ์›๋Œ€๋กœ ๊ฐ€๊ฒฉ์ฐจ์ด ์žˆ๋˜๋ฐ 3๋งŒ์›๋Œ€๋Š” ์งํ‰์ด๋ผ ์ƒ๊ฐํ•˜๋ฉด๋จ?