1               ``.---..` `--`
 2            ``.---........-:.$2-::`$1
 3           $2./::-$1........$2--::.````$1
 4          $2.:://:::$1----$2::::-..$1
 5          ..$2--:::::--::::++-$1.`
 6  $2`-:-`$1   .-ohy+::$2-:::$1/sdmdd:.$2   `-:-
 7   .-:::$1...$3sNNmds$y$1o/+$3sy+NN$m$1d+.`$2-:::-.
 8     `.-:-$1./$3dN$1()$3yyooosd$1()$3$m$1dy$2-.::-.`$1
 9      $2`.$1-...-$3+hNdyyyyyydmy$1:......$2`$1
10 ``..--.....-$3yNNm$4hssssh$3mmdo$1.........```
11`-:://:.....$3hNNNNN$4mddm$3NNNmds$1.....//::--`
12  ```.:-...$3oNNNNNNNNNNNNNNmd/$1...:-.```
13      .....$3hNNNNNNNNNNNNNNmds$1....`
14      --...$3hNNNNNNNNNNNNNNmdo$1.....
15      .:...$3/NNNNNNNNNNNNNNdd$1:....`
16       `-...$3+mNNNNNNNNNNNmh$1:...-.
17     $4.:+o+/:-$1:+oo+///++o+/:-$4:/+ooo/:.
18       $4+oo/:o-            +oooooso.`
19       $4.`   `             `/  .-//-