4                                              
16                        ____                  
16                __,-~~/~    `---.             
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15          12__16 /15        8<    /   16)  \12___        
12---===;;;'8====------------------===12;;;===-----
15             \/  12~"~"~"~"~"~15\12~"~15)12~"16/          
15             (_ (   8\  (     >    15\)          
15              \_( _ <         >_>'            
16                 ~ `-12i16' 5::16>|--"               
16                     I;12|.|.16|                  
16                    <|i12::16|i|`.                
16                    0` ^8'"12`-' 0"