.vvvv.........vvvv.....
                     ......vvvvv......(((vvvvv..........
                 ..........vvvv.......((((vvvvv.............
            ...............vvv...((((((((((vvvv..................
        .........................(((((((((((vvv...................~~~
     ...................vvvv.....(((((((((((vvv...................~~~~~~
   ..........vvvv......vvvvv........((((((((vvv....................~~~~~~~
  .........vvvvvv.....vvvvvv.........(((((((vvv....................~~~~~~~~
 .........vvvvvvv....vvvvv............(((((((......................~~~~~~~~~
.........vvvvvv.....vvvvv................((((......................~~~~~~~~~~
.........vvvvv......vvvv..............(((((((......................~~~~~~~~~~
.......vvvvv.......vvvv...............(((((((.......................~~~~~~~~~
 ......vvvvv......vvvvv...............(((((..........................~~~~~~~
  .....vvvv.......vvvv................................................~~~~~
   ....vvv........vvv..................................................~~~
     .vvvv........vvv...............vvv.................................
        vv.......vvvv.............vvvvv..............................
            ....vvvvv...........vvvvvvv.................(((......
                 vvv............vvvvvv..................((((
                     ..........vvvvv...................(
                           ....vvvv...............