1                 -+:
 2                =+++-
 3              .=+++++=
 4             :+++++++++.
 5$2.8.......   $1-++++*++++++:$2      ...88
 6 .8888888..$1-+++++*+++++*+:$2..8888888
 7  .8888888=8===$1=++++==$2==8888888888
 8   .88888==========88888888888888
 9    .888========888=888888888888.
10     8=======888888====88888888.
11      8====88888888======88888.
12       888888888888=========8.