Y                                            v
                       I                                            I
                      /~\                                          /~\
                     /~~~\                                        /~~~\
                    /~~~~~\                                      /~~~~~\
                  ()~~~~(X)\                                   '/~~~~(X)\ A
                  /\~A~~/ \~\A                               A ()~A~~/ \_/ \
                /\||/ \_| |_/ \_____________________________/_\/\/ \-    ! !
                !!  ! !     ! !__________________________________! !     ! !
                !!_.! !....-! !                                  ! !..-''! ! =.
               .!! .! !     ! !--------------------------------- ! !     ! ! |=.
             .= !.' ! !....-! !                             ! !..! !...-' V=.| =.
           .= | ./  \ /     ! !                              V    V       H =.  =..
         .=   .=I    V       V                               I    H       H  |=.  |=.
       .=|  .=| I_...H.....--H     /----/        \----\      I_...H....-''H  | |=.| |=.
     .=   .=| | I    H       H    /    //         \ `  \\    I    H       H  | |  =.   =.
  .='  .='  | | I    H       H  ./    //           \ `  \\.  I    H       H  | |  | '=.| '
.'  .='| |  | | I    H       H /    .//             \ `  \ \ I    H       H  | |  | |  '=.
 .='|  | |  | | I_...H......-H/    / /               \ `  \ \._...H.....-'H  | |  | |  | |
' | |  | |  | | I    H       H   ./ /                 \ `  \  \   H       H    |    |    |
  | |  | |  | | I    H       H  /  /                   \ `  \  \..H-------H---+-----------
__|____|____|___I___ H_______H_/  /                     \ `  \  .-Y-----------+-----------
_________________]  Y          | /                       \ `      I  .'''''.  |
             |      I   .'''''. /                         \       I (       ) |
             |      I  (       )                           \      I |   Y   | |
             |      I  |   Y   |                           |      I |   :   | |
             |      I  |   :   |                           |      I |   :   | | MEPH.