그나마 1초라도 빠르게 가능합니다 https://apps.apple.com/kr/app/%EC%84%9C%EB%B2%84%EC%8B%9C%EA%B0%84-%ED%8B%B0%EC%BC%93%ED%8C%85-%EC%88%98%EA%B0%95%EC%8B%A0%EC%B2%AD-%EC%B4%88%EC%8B%9C%EA%B3%84/id6499110329...
BD%9C%EC%A1%B0%EC%B9%98-%EB%AA%A8%EB%B9%8C%EB%A6%AC%ED%8B%B0-%ED%86%BA%EC%95%84%EB%B3%B4%EA%B8%B0/ar-BB1lOw0K?ocid=socialshare&pc=U531&cvid=219db93af695479ed1d6da71adcba54b&ei=10 예전부터 2열 접는게...