7ceb877eb08a6af139ed98b21fd70403667e9d39accfff172e0f27

7ceb877eb08a6af13ce698b21fd70403071043bab0dab7af263eb3

7ceb877eb08a6af13ce69be458d62d3bbab063ddf2a25998d4dc6dfe91

경량화가 핵심이다.