mousetester ์ด๊ฑฐ ๋Œ๋ ค๋ณด๋‹ˆ๊นŒ 4k์—์„  ํ‚จ๊ฑฐ๋ž‘ ๋ˆ๊ฑฐ๋ž‘ ๊ฒฐ๊ณผ๊ฐ€ ๋˜‘๊ฐ™์ด ๋‚˜์˜ค๋Š”๋ฐ