1$2  *+++++++#
 2$2#*******###$3  @
 3$2#*******###$3    @
 4$2#*******###$3 @    @
 5$2#*******##%$3   @
 6$3@@@@@@@@@    @ @    @
 7  @       @    @ @    @
 8    @       @    @ @    @
 9      @      @       @    @
10        @      @    @  @    @
11          @      @    @@@@@@@@@
12                   @$1#*******##%$3
13             @$1      ##########%$3
14               @$1    ##########%$3
15                 @$1  ##########%
16                    ########%