$$____________$$
                $___$________$___$
                $_____$$$$$$_____$
               $_____sss___sss____$
              $______ii_____ii_____$
               $_______$$$________$
   $$$$$$$$     $_______$________$
 $$________$       $$_________$$
  $_________$     $___$$$$$___$
     $______$    $__$________$__$
     $_____$    $__$__________$__$
    $____$   $$$$__$__________$__$$$$
   $___$    $____$__$________$___$___$
   $__$     $____$__$________$__$____$
  $___$      $____$__$____$_$__$____$
    $__$      $____$___$_$_____$___$
     $___$$$$$_$___$___$_$____$___$
        $$$$$_$____$____$_____$____$
              $$$_$_____$______$_$$$
                   $$$$___$$$$$