_ ___________________________________ _
                              __\\                               //__
            _________         |       a  l ien                      |______
  / //-----/ /      /         |                      _______/------/\      \
    /_____/-/       `----/    |   __________/-------/ /___________/ /      // /
           /------._____/ ____|__/-------'_________/-_____         /------/
                        \/-----._________/        \/----//          .
                              .                                     .
        _________ ____ _      :     ________       _ ______ ______  :_an+rm
  _______|_     /     /_______| ____|_    /_._______\     /_    _/__|_____
  \     __/    /_     |       /     _/      |      |/      |    |        | __ _
  |_____|       |_____|     _/|     |_______|______/       |____|       _|/_/_/
        |_______| --- |____/  |_____| ------------ |_______| -- |______/
                              :                                     :
                              |___    a   b  d uction            ___|
                              ~ //_______________________________\\ ~