1 ____________________
 2|                    \
 3|_  $2|   ___________ $1  |
 4  | $2|  /  __   __  \$1  |
 5  | $2|  | |  | |  | |$1  |
 6  | $2|  | |  | |  | |$1  |
 7  | $2|  | |  | |  | |$1  |
 8  | $2|  \_/  \_/  | |$1  |
 9  | $2\____________/_/$1  |
10  \___________________/