/*

    Copyright 2021 Hwakyeom Kim(=just-do-halee)

    Permission is hereby granted, free of charge,
    to any person obtaining a copy of this software
    and associated documentation files (the "Software"),
    to deal in the Software without restriction,
    including without limitation the rights to use,
    copy, modify, merge, publish, distribute, sublicense,
    and/or sell copies of the Software,
    and to permit persons to whom the Software is furnished
    to do so, subject to the following conditions:

    The above copyright notice and this permission notice
    shall be included in all copies or substantial portions
    of the Software.

    THE SOFTWARE IS PROVIDED "AS IS",
    WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
    INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
    AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
    OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
    DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
    THE USE OR OTHER DEALINGS IN THE SOFTWARE.

*/